Extech Thermometers
With both handheld and table or wall-mounted models, Extech offers multiple choices for use as a room thermometer, indoor/ outdoor thermometer, water thermometer, food/cooking stem thermometer and a non-contact forehead thermometer.
See our infrared thermometer range for Covid-19 (coronavirus) & human forehead temperature monitoring and management.
Click here to view thermometers
Thermometer categories
Contact Thermometers
Datalogging
Desktop & Wall-mount
Infrared
Accessories
Datalogging Thermometers
Extech 42270: Temperature/Humidity Datalogger
Temperature/Humidity Datalogger for 42275 kit and the 42276 Programmer/Printer
Features:
- Wide operating temperature range: -40 to 185°F (-40 to 85°C)
- Humidity range: 0 to 100% RH
- Records up to 16,000 readings (8,000 readings for each parameter)
- Use in storage containers, shipping vans, freezers and more
- Logs data for days, weeks or months – up to 1 year battery life
- Programmable sampling rate from 1sec to 2hrs plus Hi/Lo limits with alarm indication
- LCD displays current temperature/humidity
Extech 42275: Temperature/Humidity Datalogger Kit with PC Interface
Temperature/Humidity datalogger with docking station and PC software
Features:
- Wide operating temperature range: -40 to 185°F (-40 to 85°C)
- Humidity range: 0 to 100% RH
- Records up to 16,000 readings (8,000 readings for each parameter)
- Use in storage containers, shipping vans, freezers and more
- Logs data for days, weeks or months – up to 1 year battery life
- Multiple 42270 dataloggers can be programmed and data downloaded from one single docking station
- Programmable sampling rate from 1sec to 2hrs plus Hi/Lo limits with alarm indication
- Program the logger, analyze and store data using Windows® compatible software
- View current temperature/humidity on Datalogger’s LCD display
- Three start methods: Scheduled, immediate or magnetic
- Includes RS-232 docking station with cable, 42270 Humidity/Temperature datalogger and PC software
Extech SDL200: 4-Channel Datalogging Thermometer
Records data on an SD card in Excel® format
Features:
- 4-Channel datalogging with 6 Thermocouple types (J, K, E, T, R,S) and 2-Channel datalogging with RTD (Pt100Ohm) probes
- Displays [T1, T2, T3, T4] or differential [T1-T2] reading
- Offset adjustment used for zero function to make relative measurements
- Stores 99 readings manually and 20M readings via 2G SD card
- Records readings with real date and time stamp
- User programmable sampling rate: 1 to 3600 seconds
- Min/Max, Data Hold, Auto Power Off
- Built-in PC interface
- Complete with 6 AA batteries, four general purpose Type K bead wire temperature probes, SD card, and hard carrying case
InfraRed Thermometers
Extech 42510A: Wide Range Mini IR Thermometer
12:1 Compact InfraRed Thermometer with laser pointer
Features:
- IR Temperature range: -58 to 1200°F (-50 to 650°C)
- High resolution of 0.1° up to 199.9°
- High/Low setpoints with audible alarm
- 0.10 to 1.00 adjustable emissivity for better accuracy on different surfaces
- Built-in laser pointer for easy targeting
- Large backlit LCD display
- Data Hold and Min/Max, overrange indicator, auto power off
- Complete with 9V battery and pouch case
Extech 42545: High Temperature IR Thermometer
50:1 Wide range InfraRed Thermometer with laser pointer
Features:
- Wide temperature range from -58 to 1832°F (-50 to 1000°C)
- Built-in laser pointer for easy targeting
- Large backlit LCD display
- Adjustable emissivity
- High resolution of 0.1° up to 199.9°
- High and low alarm set points
Extech VIR50: Dual Laser IR Video Thermometer
2.2″ Color TFT LCD Display and Built-in Camera
Features:
- Built-in VGA (640 x 480) Camera
- MicroSD card for capturing images (JPEG) and video (3GP) for viewing on your PC
- Dual laser indicates ideal measuring distance where the two laser points converge to a 1″ target spot
- Fast 150 millisecond response time, color LED bargraph for viewing trends
- Type K Thermocouple input
- Air Temperature and Relative Humidity measurement
- Adjustable emissivity increases measurement accuracy for different surfaces
- Adjustable High/Low set points with audible alarm alerts user when temperature exceeds the programmed set points
- MAX/MIN/AVG/DIF functions, Auto Power Off
- USB interface
- Complete with microSD card, general purpose Type K bead wire probe, USB cable, rechargeable 3.7V battery, and carrying case
Extech IR100: Mini IR Thermometer
1:1 Compact-size InfraRed Thermometer
Features:
- Temperature range from -34 to 446°F (-33 to 230°C)
- Economical mini size design for convenience
- Automatic Data Hold when measure button is released
- Max/Min Hold, Auto power off
- Lock feature for continuous scanning
- Fixed emissivity covers 90% of surface applications
- Complete with CR2032 3V battery
Stem Thermometers/Indicators
Extech 392050: Penetration Stem Dial Thermometer
Measures temperature in air, liquids and semi-solids
Features:
- 5″ (130mm) stainless steel probe with 2″ (54mm) dial
- ON/OFF switch saves battery life
- Auto power off after 1 hour
- Temperature: -58 to 302°F (-50 to 150°C)
- ±2°F/1°C accuracy, 0.1°/1° resolution
Extech 39240: Waterproof Stem Thermometer
Pocket thermometer with stainless steel stem
Features:
- 2.75″ (70mm) Stainless steel stem
- Temperature: -40 to 392°F (-40 to 200°C)
- MAX/MIN recall of high and low temperatures
- Data Hold and Auto power Off features
- ±2°F/1°C accuracy, 0.1°/1° resolution
Extech 401014: Big Digit Indoor/Outdoor Thermometer
Built-in memory stores Min/ Max Temperature readings
Features:
- Large LCD display with 1″ (25mm) digits
- Simultaneous display of indoor/outdoor temperature
- Indoor Range: 14 to 140°F (-10 to 60°C)
- Outdoor Range: -58 to 158°F (-50 to 70°C)
- ±1.8°F /1°C accuracy; 0.1°F/°C resolution
Thermocouple Thermometers
Extech 421502: Type J/K, Dual Input Thermometer with Alarm
Thermometer with dual display, relative and programmable High/Low audible alarms
Features:
- Temperature range: -328 to 2498°F (-200 to 1370°C) for Type K and -328 to 1922°F (-200 to 1050°C) for Type J
- Rugged water resistant design with protective holster/stand
- Large 2000 count LCD displays T1, T2 or T1-T2, plus Elapsed Time
- Data Hold, Relative, MIN/MAX/AVG and HOLD functions
- Programmable Hi/Lo audible alarms
- Selectable °C/°F units
Extech EA11A: EasyView™ Type K Single Input Thermometer
Thermocouple thermometer with dual LCD display and memory function
Features:
- Compact and rugged design with high contrast large LCD display
- Manually store/recall up to 150 readings
- -58 to 1999°F (-50 to 1300°C) temperature range with 0.1°/1° resolution
- Records Max/Min/Avg readings for later recall
- Offset key used for zero function to make relative measurements
- Data Hold, Auto power off
Extech SD200: 3-Channel Temperature Datalogger
Records data on an SD card in Excel® format
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, univeral AC Adaptor, three Type-K bead wire temperature probes and mounting bracket
Extech SDL500: Hygro-Thermometer/Datalogger
Records data on an SD card in Excel® format
Features:
- Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement
- Adjustable data sampling rate
- Stores 99 readings manually and 20M readings via 2G SD card
- Type K/J Thermocouple input for high temperature measurements
- Large backlit dual LCD display
- Record/Recall MIN, MAX, Data Hold and Auto power off
- Built-in PC interface
- Complete with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe