The REED R2815 Temperature Calibrator is a powerful tool for professionals who need precision and reliability in temperature calibration.

Designed to source and measure 11 thermocouple types and 5 RTD (3-wire) types, this versatile instrument is ideal for various industries, including manufacturing, chemical production, and power generation.

Its user-friendly design, advanced features, and exceptional accuracy make it a trusted choice for calibrating devices like meters, controllers, transmitters, and data loggers.

Key Features of the REED R2815

• Wide Compatibility: Accurately sources and measures 11 thermocouple types (A, B, C, D, E, J, K, N, R, S, T) and 5 RTD (3-wire) types, such as Pt100, Pt200, Pt500, Pt1000, and Cu50.
• Multi-Functionality: Measures volts and ohms, providing extra flexibility for various calibration tasks.
• Exceptional Accuracy: Features internal cold junction compensation to ensure consistently precise readings.
• User-Friendly Display: Equipped with a large, 6-digit LCD display that’s easy to read in various lighting conditions.
• Convenient Design: Includes a zero adjustment button, a built-in LED flashlight for low-light environments, and a user-selectable unit of measure (°F/°C).
• Energy Efficient: Comes with a low battery indicator and an auto shut-off function to save power.

Applications

The REED R2815 is an essential tool for professionals across industries where precise temperature calibration is critical. Its ability to handle a wide range of thermocouple and RTD types makes it suitable for:

• Chemical Production: Ensure accurate temperature readings for sensitive chemical processes.
• Petroleum Refineries: Maintain precise temperature measurements for refining operations.
• Manufacturing: Calibrate devices used in production lines and quality control.
• Power Production: Optimize performance and safety in power plants.
• Steel and Iron Industries: Support high-precision processes in metal production.

What’s Included

With your purchase of the REED R2815 Temperature Calibrator, you’ll receive:

• Temperature Calibrator Unit
• Test Leads
• Alligator Clips
• Thermocouple Adapter
• Batteries

Why Choose the REED R2815?

Whether you’re calibrating thermocouples, RTDs, or measuring volts and ohms, the REED R2815 is a reliable and versatile tool built for professional environments.

Its robust design, advanced accuracy, and thoughtful features make it the ultimate solution for temperature calibration needs. From chemical plants to steel mills, this calibrator is ready to meet the toughest challenges.

Upgrade your toolkit with the REED R2815 Temperature Calibrator today and experience precision, durability, and ease of use like never before!

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Using the free ExView app, the Extech RH250W is a compact digital hygro-thermometer with Bluetooth® connectivity, allowing building and maintenance professionals to view and share relative humidity and temperature data directly from their mobile devices. With the capability to gather data and display trends, set visual and audible alarms, and send reports, users can gain a deeper understanding of equipment and building health.

Features

• Measure relative humidity and air temperature simultaneously
• Transmit, view, and share data directly from a mobile device via Bluetooth connection to the ExView app
• Record Max/Min readings
• Freeze display with ‘Data Hold’
• Save battery life with Auto Power Off feature
• Mount on tripod with standard 1/4″-20 mounting screw
• View data on both the bright, backlit RH250W LCD display and from the app on iOS® or Android™ mobile devices (offers both day mode and dark mode)
• Connect up to eight compatible Extech Connected 250W Series meters to the app simultaneously
• Set up data recording and program high/low audible alarms through the app
• Export data in .CSV file format or send PDF reports—including photos of the measurement location—from the app
• Comes complete with 3 AAA (1.5 V) batteries

ExView® App Enables Remote Data Collection and Reporting With Multiple Devices

Extech has launched a new mobile app that will make data collection and analysis easier than ever before with its 250W-Series of environmental meters – the ExView App. This app allows you to monitor a variety of environmental conditions from outside safe or hard-to-reach areas. It connects with up to eight meters at once. You will be able to monitor key readings throughout your facility and easily share them with your team whether you’re using several LT250W light meters, AN250W aneometers, or other new 250W-Series meters.

With the ExView App, you are able to read and log measurements remotely in real time. In addition, you can create detailed PDF reports that can be shared and saved. When you connect your meters to a mobile device, you can easily collect data, create graphs, and add information to customer reports. Also, you can use your smartphone or tablet for remote viewing in difficult-to-access areas or for sharing results with others.

Integration With the Extech W Series

Extech W Series meters that include Bluetooth® connectivity were designed for seamless integration with the ExView App. In addition to displaying trends, setting alarms, creating and sending reports, users can gather deeper insights on equipment and building health.

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Features:

• Up to 8 transmitters can be wirelessly connected to RH200W base station
• Transmitter LED flashes to indicate normal operation
• Transmitters can be mounted up to 98ft (30m) from the base station
• Operates at 433MHz; FCC approved
• Complete with 2 AA batteries

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Simultaneously datalog and monitor relative humidity, temperature, and calculated dew point on the Extech RH550. It features live or user-scheduled recording time and programmable Min/Max alarm set points. A built-in stand is included for desktop use, as well as a bracket for wall-mounting. The RH550 also features a field-replaceable probe that can be attached to the monitor or on a 6 ft (1.8 m) cable. This recorder is useful in office buildings, conference rooms, labs, hospitals, cleanrooms, greenhouses, food storage facilities, and more.

EXTECH RH550 Features:

• Large 7″ (178 mm) high-resolution color TFT LCD (1024 x 600 pixels) with display zoom feature, interactive touch screen menu, and screen capture capability with finger swipe
• Simultaneous numerical and graphical display of real-time Humidity, Temperature and Dew Point readings, plus Time and Date in Live Mode
• Internal 16 GB memory for capturing up to 20,000 data points in CSV format that can be transferred to a computer via USB port
• User selectable 1 second to 24 hour sampling rate
• Audible and visual alarm with Hi/Low set points
• View recorded alarm values by date sorting or by temperature and humidity values
• Memory progress bar indicates used memory and percentage of free memory remaining
• Recall saved data files using History Mode
• MIN/MAX records minimum and maximum values for all 3 units of measure
• Field-replaceable probe does not require recalibration
• Probe can either be clipped directly onto the tablet or attached to a cable to extend up to ~6 ft (1.8 m) for measurements in closed environments
• Up to 3 probe cables (RH550-C) can be connected together (one is included)
• Desktop or wall mount
• Complete with built-in stand, wall mount bracket, RH550-P detachable probe, RH550-C probe cable (6 ft /1.8 m), USB cable, universal adaptor with multiplugs (US, EU, UK, AU), and internal rechargeable battery

EXTECH RH550 Specifications:

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A dual-illuminated readout can be alternated to display wet bulb and humidity, or dew point and humidity, or temperature and humidity.

This handheld device registers temperatures from -3 degrees to 100 degrees C and measures the full spectrum of relative humidity with ±2% accuracy between 20 and 90% RH.

Extech RH390 Features:

• Fast response time (<30 seconds)
• Dual backlit display
• Data Hold and Min/Max functions
• Simultaneous display of:
  Humidity/Temperature
  Humidity/Dew Point
  Humidity/Wet Bulb
• Slim design with rubberized sides for better grip and for one hand operation
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery

Automatic Power OFF

The RH390 has a default setting that automatically shuts the meter off after 10 minutes (indicated by a symbol on the display). This battery saving feature can be disabled by simply pressing and holding the “hold” button.

Extech RH390 Specification:

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Its unique sensor cap closes for protection during storage.Simultaneously displays relative humidity, air temperature and dew point or wet bulb. Calculates T1-T2 differential (air temperature minus external probe temperature) using optional probe (TP890), and T2 minus dew point.

Other features of the RH300 include Data Hold, Auto Power Off, and MAX/MIN reading.

Extech RH300 Hygro-Thermometer Features:

• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
• Wet bulb measurements without slinging
• Calculates T1-T2 differential (Air Temperature-External Probe Temperature) using optional probe
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution

Extech RH300 Sensor Protective Cap

Turn the protective cap (top of meter), in the direction of the OPEN arrow to allow air into the sensor cavity.

Turn the cap in the direction of the CLOSE arrow to protect the sensors.

Always open the cap to take measurements and close when storing.

Extech RH300 Specifications:

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• 12-Channel temperature datalogging with 6 Thermocouple types (J, K, E, T, R,S)
• Simultaneously displays CH1 to CH8 or CH9 to CH12
• Offset adjustment used for zero function or to make relative measurements
• Stores 99 readings manually and 20M readings via 2GB SD card
• Records readings with date and time stamp
• User programmable sampling rate: 1 to 3600 seconds
• Min/Max and Data Hold functions
• Auto power off with disable function
• Complete with 8 AA batteries, 12 general purpose Type K bead wire temperature probes, SD card, and hard carrying case

EXTECH TM500 12-Channel Datalogging Thermometer Specifications:

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With an overall temperature range of –100 to 1300°C, Extech SD200 temperature data loggers feature an accuracy of ±(0.5% + 0.5°C). The selectable data sampling rate of the Extech SD200 allows you to choose between 5, 10, 30, 60, 120, 300, 600 seconds or auto.

EXTECH SD200 3-Channel Temperature Datalogger Features:

• Triple LCD simultaneously displays 3 Type-K Temperature channels
• Datalogger stores readings on an SD card in Excel format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
• Complete with six AAA batteries, 2G SD card, universal AC Adaptor, three Type-K bead wire temperature probes and mounting bracket

EXTECH SD200 3-Channel Temperature Datalogger Specifications:

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The Extech TH30 USB Dual Temperature Datalogger simultaneously measures temperatures ranging from -30 to 70°C using an internal NTC thermistor sensor and an external probe. Using the probe’s long 2.1m cord, the external sensor can be placed in nearby registers, returns, vents, rooms, or other locations to easily contrast temperatures

Users can “set and forget” the dataloggers with a customizable recording rate from once every 30 seconds to once every 2 hours and a capacity of up to 48,000 combined, total readings with date and time stamps. For multi-site logging, readings can be associated with up to 8 locations. Technicians and occupants can quickly check current readings on the large, high visibility LCD. The MAX/MIN button allows quick access to the highest and lowest readings recorded. High and low thresholds can also be configured to trigger a red flashing LED alarm indicator. When reporting is required, the dataloggers can be connected to a PC or laptop to easily output readings in a Microsoft Excel or Adobe PDF format.

Extech TH30 USB Dual Temperature Datalogger Features:

• Compact size housing with built-in NTC thermistor and external temperature probe designed with standard USB connector for easy data downloading to a PC
• 5-digit LCD display with battery life indicator
• User programmable settings: 6 languages, sample rate, start delay time, alarm delay time, high/low alarm range, and security feature
• Status Indication via Red and Green LEDs
• Start button begins continuous datalogging, which continues until memory is full at 48,000 readings (24,000 for each parameter: T1 and T2), or when Stop button is pressed
• Bookmark 8 locations in a data recording log with a press of the Mark button
• Long battery life (approx. 3 months)
• Generates a PDF report or Excel® spreadsheet with data and trending graph when plugged into a PC after datalogging is completed (Adobe® Reader® required)
• Max/Min function
• Includes 2 CR2032 batteries, USB cover (can be used as a stand), TP830 probe, and built-in hanger

Extech TH30 Specifications:

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The Extech RHT35 USB Humidity / Temperature / Barometric Pressure Datalogger is similar in size to  a large key fob, and is designed for everyday use in troubleshooting HVAC/R and indoor air quality (IAQ) issues related to temperature, humidity and barometric pressure.

HVAC/R technicians, commercial facilities managers, IAQ professionals and workplace health managers alike can use the RHT35 to monitor a location for an extended period of time in response to occupant complaints or as part of standard predictive maintenance.

Users can “set and forget” the dataloggers with a customizable recording rate from once every 30 seconds to once every 2 hours and a capacity of up to 48,000 combined, total readings with date and time stamps. For multi-site logging, readings can be associated with up to 8 locations. Technicians and occupants can quickly check current readings on the large, high visibility LCD. The MAX/MIN button allows quick access to the highest and lowest readings recorded. High and low thresholds can also be configured to trigger a red flashing LED alarm indicator. When reporting is required, the dataloggers can be connected to a PC or laptop to easily output readings in a Microsoft Excel or Adobe PDF format.

Extech RHT35 USB Humidity/Temperature/Barometric Pressure Datalogger Features:

• Compact size housing with built-in NTC thermistor, capacitive humidity sensor, and barometric pressure MEMS sensor designed with standard USB connector for easy data downloading to a PC
• 5-digit LCD display with battery life indicator
• User programmable settings: 6 languages, sample rate, start delay time, alarm delay time, high/low alarm range, and security feature
• Status Indication via Red and Green LEDs
• Start button begins continuous datalogging, which continues until memory is full at 48,000 readings (16K for each parameter), or when Stop button is pressed
• Bookmark 8 locations in a data recording log with a press of the Mark button
• Long battery life (approx. 3 months)
• Generates a PDF report or Excel® spreadsheet with data and trending graph when plugged into a PC after datalogging is completed (Adobe® Reader® required)
• Max/Min function
• Includes 2 CR2032 batteries, USB cover (can be used as a stand), wall mounting screw, and built-in hanger

Extech RHT35 Specifications:

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