Thermometers

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

EXTECH 42270: Temperature/Humidity Datalogger

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

EXTECH 42275: Temperature/Humidity Datalogger Kit with PC Interf

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

EXTECH SDL200: 4-Channel Datalogging Thermometer

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

EXTECH 42510A: Wide Range Mini IR Thermometer

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

EXTECH 42545: High Temperature IR Thermometer

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

EXTECH VIR50: Dual Laser IR Video Thermometer

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

EXTECH IR100: Mini IR 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

EXTECH 392050: Penetration Stem Dial Thermometer

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

EXTECH 39240: Waterproof Stem Thermometer

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

EXTECH 401014: Big Digit Indoor/Outdoor Thermometer

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

EXTECH 421502: Type J/K, Dual Input Thermometer with Alarm

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

Extech EA11A: EasyView™ Type K Single Input Thermometer

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

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, 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

EXTECH SDL500: Hygro-Thermometer/Datalogger

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