Anyone who has spent a day fault-finding around a switchboard knows the routine — swap leads for the insulation tester, swap again for the earth tester, then reach for the multimeter to confirm the circuit’s dead. Three instruments, a tangle of leads, and a real risk of triggering an RCD trip the moment a small test current sneaks down the earth path. On a busy commercial fit-off or a rooftop solar job, that lost time adds up fast, and a nuisance trip can mean climbing back into the roof space to reset a board.

For Australian trades working to AS/NZS 3000, insulation resistance and earthing checks aren’t optional — they’re the backbone of safe verification. The challenge has always been doing them quickly, accurately and without dragging a kit bag of separate testers up a ladder.

The Solution: Three Tests, One Pocket-Sized Probe

The KEW 6041BT collapses that whole workflow into one palm-sized tester you can hold like a pen. Press the tip to the conductor, hit TEST, and you’ve got insulation resistance, earth resistance or voltage at a glance. KYORITSU built it around a simple idea — get the technician released from test-lead hassles — and the result is an instrument that’s genuinely faster to use on real jobs.

It measures insulation resistance across four ranges (50, 125, 250 and 500 V), checks earth resistance using a simplified 2-pole method, and reads True RMS voltage up to 440 V AC/DC with automatic AC/DC detection. A built-in illuminance sensor wakes the LED light and backlight in dim plant rooms, and glow-in-the-dark switches help you find the controls when you’re working in a dark roof cavity. Crucially, the earth function uses a test current of 2 mA or less, so you can take earth readings on live installations without unintentionally tripping the RCD.

Key Features and What They Mean on the Job

• All-in-one probe design – Insulation, earth and voltage testing in a single 230 g body you operate one-handed. Less gear in the bag, fewer leads to swap, faster results between points.
• Anti-trip earth testing (≤2 mA) – The low test current on the earth function avoids unintentional RCD trips, so you keep measuring on live boards without resetting protection devices.
• Live circuit warning – On both insulation and earth functions, an audible alert plus a red LCD backlight flag dangerous voltage (30 V or higher) and lock out measurement until it’s safe. A built-in safeguard before you apply test voltage.
• True RMS voltage to 440 V – Accurate readings on distorted waveforms common around VSDs, inverters and switching loads, with AC/DC auto-detection so there’s one less setting to get wrong.
• Comparator function with audible pass/fail – Set a threshold and the tester beeps and lights up when a reading falls outside it, so you can run repetitive checks without squinting at every value.
• Auto-discharge – Stored charge on the circuit under test is automatically bled off after an insulation test, protecting you and the equipment.
• Bluetooth 5.0 to KEW Smart Advanced – Save readings straight to your phone or tablet, capture location data, and drop results into the supplied Excel report template — paperwork done before you’ve packed up.
• App-based customisation – Disable ranges or functions you don’t use, change the maximum displayed value, or adjust comparator thresholds to suit your workflow and reduce the chance of accidental high-voltage output.
• Replaceable metal tips – Standard, long and moulded tips are available, plus an optional L-shaped probe for awkward, high or recessed terminals.

Technical Specifications

Specifications are drawn from KYORITSU’s published product data. If you need a full datasheet or instruction manual before purchasing, get in touch and we’ll send it through.

Who It’s For – Real-World Applications

Electrical contractors and sparkies: Run insulation resistance and earth checks during fit-off, fault-finding and periodic verification without lugging separate testers. The probe design and live-circuit lockout make point-to-point testing around a switchboard quick and safe.

Solar PV installers: Carry one compact instrument up to the roof for quick insulation and voltage confirmation on DC and AC sides, with True RMS handling inverter-related waveform distortion. Bluetooth logging means commissioning notes are captured on the spot.

Industrial and facility maintenance teams: Keep a 6041BT in the toolbox for fast spot-checks on motors, control panels and machinery. The anti-trip earth function lets you verify earthing on running plant without dropping protection, and the comparator’s audible pass/fail speeds up repetitive routine inspections.

HVAC and building services technicians: Confirm circuits are dead, check insulation on plant wiring, and verify earthing on rooftop and plant-room equipment — all from one pocketable tool with a light built in for dark mechanical spaces.

TAFE, RTOs and training departments: A safe, simple, app-connected tester that teaches insulation, earth and voltage testing fundamentals, with reporting features students will meet in the field.

What is the KYORITSU KEW 6041BT used for?

The KYORITSU KEW 6041BT is a palm-sized 3-in-1 tester used to measure insulation resistance (50/125/250/500 V), earth resistance (2-pole method, up to 2000 Ω) and True RMS voltage (up to 440 V AC/DC). Electricians, solar installers and maintenance technicians use it for fast, compliant safety testing on site without carrying three separate instruments.

Does the KEW 6041BT prevent RCD nuisance tripping?

Yes. On the earth resistance function the KEW 6041BT uses a test current of 2 mA or less, which is low enough to take earth readings on live installations without unintentionally tripping RCDs. This lets technicians measure on energised boards without resetting protection devices.

Can the KEW 6041BT measure earth resistance without driving stakes into the ground?

Yes. The KEW 6041BT is a simplified earth resistance tester that uses the 2-pole measurement method with existing low-resistance earth systems — such as buried metal water pipes, the common earth of the commercial supply, or a building’s lightning electrode. It’s designed for situations where auxiliary earth stakes can’t be driven, like urban or concrete sites.

Is the KEW 6041BT suitable for AS/NZS 3000 insulation testing?

The KEW 6041BT provides a 500 V DC insulation test range and reads insulation resistance up to 200 MΩ, supporting the insulation resistance verification carried out under the AS/NZS 3000 Wiring Rules. It is rated CAT IV 150 V / CAT III 300 V and built to the IEC 61557 series that underpins Australian testing practice. Always follow the current edition of AS/NZS 3000 and your verification procedures.

Does the KEW 6041BT connect to a phone?

Yes. The KEW 6041BT has Bluetooth 5.0 and works with the free KEW Smart Advanced app for Android and iOS. You can view live readings, save measured data in CSV, capture location information, and transfer results into an Excel report template to generate test reports on site.

How accurate is the KEW 6041BT?

Insulation resistance accuracy is ±2% rdg ±2 dgt in the first effective range, earth resistance is ±3% rdg ±5 dgt, and voltage is ±1% rdg ±4 dgt on AC (True RMS). These tolerances make it dependable for routine compliance pass/fail decisions.

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As the adoption of electric vehicles grows, ensuring the reliability and safety of charging infrastructure is paramount. The KEW 8602 simulates the presence of an electric vehicle, allowing you to conduct a full suite of tests without needing an actual EV. This capability significantly streamlines your workflow, saving valuable time on-site. When paired with a compatible Kyoritsu multifunction tester, such as the KEW 6516/6516BT or KEW 6011A, this EVSE testing tool can measure loop impedance, insulation resistance, and RCD trip times, providing a complete diagnostic overview.

This electric vehicle charger adapter is engineered for practicality and efficiency. It features a rotary switch to simulate the Proximity Pilot (PP) state, which corresponds to the current carrying capacity of the charging cable. Another rotary switch simulates the Control Pilot (CP) state, representing various vehicle charging statuses like ‘vehicle connected’ or ‘charging.’ These simulations are crucial for verifying that the EVSE responds correctly to different vehicle states, preventing potential hazards and ensuring a seamless charging experience for users.

The adapter’s design focuses on user safety and ease of use. It includes 4mm measurement terminals for connection to the multifunction tester and a mains socket for checking the functionality of the power supply. This allows for straightforward verification of voltage and phase sequence. Its robust construction ensures it can withstand the rigours of daily field use, providing a reliable solution for verifying compliance with relevant safety standards. With the Kyoritsu KEW 8602 EVSE Adapter, you can confidently certify that every charging station you service is safe, compliant, and ready for operation.

Kyoritsu KEW 8602 Key Features

• Comprehensive EVSE Testing: The Kyoritsu KEW 8602 EVSE Adapter allows for the simulation of an electric vehicle’s presence, enabling comprehensive safety and functional tests on AC EVSE with Type 2 connectors without needing an actual vehicle.
• Proximity Pilot (PP) State Simulation: A dedicated rotary switch simulates the PP state to verify the EVSE’s ability to detect the charging cable’s current-carrying capacity, ensuring correct power delivery and safety compliance.
• Control Pilot (CP) State Simulation: Easily simulate various charging states, such as ‘Vehicle Connected’ and ‘Charging,’ to confirm that the charging station responds correctly to vehicle signals, guaranteeing reliable operation.
• Seamless Integration with Multifunction Testers: Designed to work perfectly with Kyoritsu multifunction testers (like KEW 6516/6516BT), it facilitates essential measurements including loop impedance, RCD tests, and insulation resistance for a complete safety assessment.
• Direct Power and Phase Verification: Features a mains socket and 4mm measurement terminals, allowing for straightforward verification of voltage and phase sequence to confirm the integrity of the power supply before testing begins.
• Durable and Field-Ready Design: Built for professional use, its robust construction ensures reliability and longevity, making it an essential tool for technicians performing installations and maintenance in various field conditions.

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The Kyoritsu 2434 Leakage Clamp Meter is an essential diagnostic tool for electricians, maintenance engineers, and technicians who require precise and reliable leakage current measurement. Engineered for accuracy and user safety, this instrument provides dependable performance in demanding industrial and commercial environments. It is specifically designed to identify intermittent tripping of RCDs and trace faults in electrical installations, ensuring system integrity and operational safety.

Kyoritsu 2434 Key Features:

• High-Accuracy Measurement: Delivers precise leakage current readings, ensuring reliable fault finding and diagnostics even in complex electrical systems.
• Harmonics Filtering: Features a frequency selector switch to eliminate the effect of harmonics, allowing for accurate measurement of the fundamental 50/60Hz waveform.
• Superior Magnetic Immunity: Designed to minimise interference from external magnetic fields, providing stable and repeatable measurements for dependable analysis.
• Enhanced User Safety: Complies with the IEC 61010-1 CAT III 300V safety standard, offering robust protection for operators in demanding industrial environments.
• Compact and Ergonomic Design: Its lightweight build and 24mm jaw size make it ideal for use in confined spaces like crowded switchboards and panels.
• Simple One-Handed Operation: A rotary switch and Data Hold function provide user-friendly control, enhancing efficiency when taking measurements in hard-to-reach locations.

Accurate Leakage Current Measurement

A standout feature of the Kyoritsu 2434 is its ability to deliver highly accurate current readings, even in complex electrical systems. With a frequency filter switch, it effectively eliminates the influence of harmonics, allowing you to isolate and measure the fundamental 50/60Hz waveform. This capability is critical for accurate leakage current measurement and troubleshooting. The meter’s advanced design minimises the effect of external magnetic fields, ensuring that measurements are precise and repeatable, which prevents inaccurate readings that can lead to incorrect diagnoses.

Designed for Professional Use

The compact and lightweight construction of the Kyoritsu 2434 makes it easy to handle and operate, particularly in confined spaces such as crowded switchboards and wiring cabinets. Its 24mm jaw size is ideal for clamping onto conductors in tight areas. The rotary switch allows for simple, one-handed operation, enhancing efficiency during fieldwork. Safety is paramount in electrical testing, and this accurate clamp meter is built to comply with IEC 61010-1 CAT III 300V safety standards, providing confidence and protection for the user during operation. The Data Hold function allows you to freeze the reading on the display, which is useful for taking measurements in difficult-to-reach locations where the screen may not be immediately visible.

For any professional tasked with maintaining electrical systems, the Kyoritsu 2434 Leakage Clamp Meter offers the precision, reliability, and safety required to perform the job effectively. It is a vital instrument for preventative maintenance, fault finding, and ensuring the stability of electrical circuits.

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The Kyoritsu KEW 3131A Analog Insulation/Continuity Tester is a reliable and essential tool for ensuring electrical safety and maintaining high operational standards. Designed for professionals who require precise and efficient testing, this tester is ideal for use in a variety of settings, from industrial environments to residential electrical installations.

Key Features

• Three Insulation Test Ranges: The KEW 3131A offers a versatile range of insulation test options with voltages of 250V, 500V, and 1000V, capable of measuring up to 400MΩ. This flexibility ensures that you can undertake a wide range of testing scenarios without needing multiple devices.
• LIVE Circuit Warning: For heightened safety, this tester is equipped with a LIVE circuit warning lamp and an audible signal, alerting users to the presence of live circuits and helping to prevent accidents.
• Automatic Discharge Function: After tests are completed, the KEW 3131A automatically discharges circuit capacitance when the TEST button is released, ensuring user safety and maintaining equipment integrity.
• Built-in Protections: The tester includes fuse protection, specifically for the continuity range, safeguarding the device against potential overloads.
• User-Friendly Design: With a battery check LED, zero adjustment panel, and a backlight function, this unit is designed for ease of use even in poorly lit environments. The PRESS TO TEST button also includes a lock-down feature, allowing for hands-free operation in extended testing sessions.

Specifications

• Insulation Resistance Ranges: Choose from test voltages of 250V, 500V, and 1000V, with mid-scale measuring values at 1/2/4MΩ. This provides output voltage on open circuit at a rated test voltage of +20%, -0%, and a nominal current of 1mA DC minimum. The output short circuit current is approximately 1.3 mA DC with an accuracy of ±5% of the indicated value for guaranteed ranges.
• Continuity Testing: This feature includes measuring ranges up to 20Ω with a 200mA DC minimum current. The output voltage on open circuit ranges from 4 – 9V DC, boasting an accuracy of ±3% of scale length, ensuring precision for all continuity measurements.
• Safety and Compliance: Meeting strict industry standards, the KEW 3131A complies with IEC 61010-1 CAT III 300V Pollution Degree 2, alongside EMC Standard IEC 61326-1, and has an impressive IP54 rating. This level of compliance guarantees that the tester is both safe and durable when used in challenging conditions.

General Details

• Power Source & Dimensions: Operates on six R6 (AA) 1.5V batteries, with a dimension profile of 167(L) x 185(W) x 89(D)mm, and a weight of approximately 860g, making it compact and portable.
• Accessories Included: In addition to the tester, the package includes high-quality test leads [7122B], a protective pouch, a cord case [9074], a spare fuse [8923], a shoulder strap [9121], and a comprehensive instruction manual—making it a complete turnkey solution for electrical testing needs.

The Kyoritsu KEW 3131A is an indispensable instrument for any professional requiring reliable insulation and continuity testing. Its versatile functions, combined with ease of use and robust safety features, make it a tool you can trust. Purchase the KEW 3131A today, and experience the assurance of professional-grade electrical testing.

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Kyoritsu KEW 3125B High Voltage Insulation Tester for Professionals

Enhance your electrical testing capabilities with the Kyoritsu KEW 3125B, a high-performance high voltage insulation tester designed to meet the demands of professionals. This sleek, durable, and ergonomic tester is the de facto standard in high voltage insulation testing, offering unparalleled performance and reliability.

Top Features of Kyoritsu KEW 3125B:

• Insulation Resistance Up to 1TΩ: Experience extensive measurement capacity with a tester designed for high-resistance applications.
• Short-Circuit Current up to 1.5mA: Robust short-circuit current capabilities ensure effective and reliable insulation testing in various scenarios.
• Wide Test Voltage Range: Test voltages range from 250V to 5000V, providing flexibility for different testing requirements and ensuring comprehensive diagnostics.
• Advanced Diagnosis Functions: Integrated PI (Polarization Index) and DAR (Dielectric Absorption Ratio) functions help diagnose and analyze insulation performance effectively.
• Innovative Alligator Clip Design: Newly-designed clips enhance connectivity and ease of use, catering to simplified operational efficiency.
• Protective Tough Hard Case: Comes with a durable hard case for secure and easy transportation, safeguarding your equipment against environmental stresses.
• Noise Reduction Filter Function: Equipped with a filter function to mitigate noise interference, delivering stable and accurate measurements.

Performance Metrics:

Insulation Resistance

The Kyoritsu KEW 3125B offers exceptional accuracy and reliability in its measurement capabilities across a variety of ranges and test voltages. The testing accuracy is ±5%rdg±3dgt, maintaining precision even at higher resistance levels. Designed for both moderate and extreme conditions, it covers test voltage adaptability from 250V to 5000V.

Voltage Measurement

With a measuring range of 30 to 600V AC and ±30 to ±600V DC, the device ensures broad usability across different voltage assessments, with a superior accuracy of ±2%rdg±3dgt.

Why Choose Kyoritsu KEW 3125B?

Invest in a product that prioritizes safety and performance. The Kyoritsu KEW 3125B complies with IEC 61010-1 and 61010-2-030 standards, rated for CAT Ⅳ 300V and CAT Ⅲ 600V, ensuring dependable safety in high-stake environments. Furthermore, it meets pollution degree 2 standards, highlighting its resilience.

Live Voltage Warning

Safety is heightened with the inclusion of a live voltage warning feature, alerting users to potential hazardous conditions swiftly and effectively, ensuring a proactive approach to risk management.

Conclusion

The Kyoritsu KEW 3125B High Voltage Insulation Tester is intelligently engineered for skilled professionals who require precise, reliable, and robust testing equipment. Its multifunctional capabilities, advanced features, and compliance with strict safety standards make it a valuable asset in any electrical engineer’s toolkit. Elevate your testing processes today by choosing the Kyoritsu KEW 3125B for accurate and comprehensive insulation testing.

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Welcome to your definitive source for the Kyoritsu KEW 1019R Digital Multimeter, a cutting-edge instrument that combines precision and practicality, perfect for both professional technicians and avid hobbyists. This compact and versatile tool is thoughtfully designed to bring efficiency to your measurement tasks across various applications.

Why Choose the Kyoritsu KEW 1019R?

When selecting a digital multimeter, accuracy and reliability are non-negotiable. The Kyoritsu KEW 1019R stands out with its True RMS technology, ensuring precise readings even in complex electrical environments. Whether you’re dealing with modern electronic devices like LED lamps, motor inverters, or advanced PCs and air conditioners, this multimeter provides the reliability you need.

Key Features

• True RMS Measurements: Get accurate readings every time, regardless of the complexity of your electrical load.
• Elegant Shiny-Black Design: Aesthetically appealing, its design complements modern professional and home settings.
• User-Friendly Hard Case: Comes with a sturdy case ensuring portability and protection, enhancing the longevity of your device.
• Large, Clear Display: Allows for easy reading and interpretation of measurements, reducing the margin for error.
• Robust Safety Standards: Complies with IEC 61010-1/61010-031/61010-2-033 CAT Ⅲ 300V / CAT Ⅱ 600V standards for assured safety during use.

Technical Specifications

The KEW 1019R delivers a comprehensive range of measurements:

• DC Voltage: Ranging from 600.0mV to 600.0V with an impressive accuracy of ±0.8%rdg±5dgt.
• AC Voltage (RMS): Measures from 6.000V to 600.0V, accommodating various frequency ranges.
• Resistance (Ω): Extensive measurement capability from 600.0Ω up to 40.00MΩ.
• Capacitance: Measurements span from nanoFarads to microFarads, integral for troubleshooting capacitor-associated circuits.

Safety and Battery Life

Safety is a priority with the KEW 1019R. Its electronic protection feature on ohm and continuity ranges eliminates the need for fuses while maintaining operational safety. Powered by a single CR2032 battery, it offers approximately 120 hours of continuous usage, efficiently supported by an auto-sleep function.

What’s Included?

Your KEW 1019R comes complete with a battery, 9188 hard case, and a detailed instruction manual, ensuring you’re well-equipped from the get-go.

Safe Usage Instructions

Ensure to thoroughly read the included safety warnings and manual before use. Operating the instrument within the correct power range prevents risks of fire, electrical shock, and damage.

Order Your KEW 1019R Digital Multimeter Today!

Upgrade your toolkit with the Kyoritsu KEW 1019R – a true blend of precision engineering and user-focused design. Enhance your project accuracy, ensure safety, and enjoy the convenient features of this indispensable digital multimeter. Click ‘Add to Cart’ to make this essential tool a part of your daily toolkit!

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With a measurement speed of 0.5 seconds, you’ll be able to quickly and accurately assess the condition of your equipment. The six available ranges make it easy to find the right setting for your specific needs (50/100/125/250/500/1000 V).

Whether you’re testing for continuity or insulation resistance, the Kyoritsu 3551 is a great choice.

• Fastest measurement speed (0.5 sec.)
• Six ranges available for insulation resistance test (50/100/125/250/500/1000 V)

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The Kyoritsu 1110 Analogue Multimeter is a high-quality and reliable tool that is perfect for a wide range of applications. With its high sensitivity DC20kΩ/V, it can accurately measure line voltages up to AC 600V. Additionally, the taut-band movement design makes it resistant to drops and other impacts, while the skeleton case provides a clear view of the internals. The LED check function also allows you to easily see if the device is functioning properly. Finally, the carrying handle ensures that you can easily transport the multimeter to wherever it is needed.

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Bluetooth communication

KEW 6516BT has a Bluetooth communication function and can exchange data with Android/ iOS tablet devices.

Before starting to use this function, download the special application “KEW Smart *” via the internet.

Large LCD & HELP function

• All the test data is shown in one large colored screen.
• HELP function will show how to connect the instrument according to the function selected

Operation in 3 simple steps & Hands free testing

1. Set the rotary dial to your testing range.
2. Connect the instrument to the installation under test.
3. Press the test button.(By remote probe or using the Lockdown function of the test button.)

Anti-Trip Technology (with 2 & 3 wire)

For no trip LOOP L-PE testing on all RCDs.
With 3 wire (L, N, PE), to get the best accuracy readings.
With 2 wire only, very useful in case of no Neutral (i.e. 3-phase motor lines).

Loop Impedance 0.001 resolution

High test current range of 2Ω with 0.001Ω resolution.

Zs/Ra Limit

Zs Limit compares the values required by Electrical Installations Standard with measured results.

The verification of safety requirement on an electrical installation is simplified by using Zs/Ra Limit function. This function will automatically check if the measured loop impedance for TN (or earth loop for TT) is low enough to trip (disconnect) the MCB / Fuse / RCD giving the result of PASS or FAIL on the display.

SPD test

SPD (Surge Protection Device) which contains varistor can be tested measuring the tripping voltage without damage it.

PAT test

PAT test (PAT = Portable Appliance Tester) It is possible to check the insulation resistance and earth bond continuity of portable appliances for class I and II.

Connectivity

Use the PC application KEW Report to improve work efficiency.

KEW 6516 can download the test data by connecting the USB adaptor (Model 8212-USB) and then print complete Test Reports by a PC.

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Shows insulation resistance (R) values determined by the following formula.
V: Reference voltage/ Ior: Leakage current
Displayed value is just for reference since the measurement method differs from insulation
resistance testers and may not be consistent with each other.

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