Indoor & Outdoor Temperature / Humidity Monitors

  1. ETI 803-229 Room Spirit Thermometer (25 x 175mm)
    ETI logo
    3 In Stock
    ETI 803-229 Room Spirit Thermometer (25 x 175mm)
    (2)
    £2.16 £1.80
    • Measure temperature from -30 to 50°C
    • Ideal for use in the home, around offices etc
    • Includes hole for hanging
    1 Reward Points
    Price Match Guarantee
    803-229
  2. Comark WT4 Wall Thermometer
    Comark logo
    Only 1 In Stock
    Comark WT4 Wall Thermometer
    (no reviews)
    £2.65 £2.21
    • Simple, wall-hangable thermometer with non-toxic, spirit-filled gauge
    • Dual scale shows measurements in both Celsius and Fahrenheit
    • Suitable for use indoors and outdoors
    2 Reward Points
    Price Match Guarantee
    WT4
  3. ETI 803-232 Room Spirit Thermometer (45 x 195mm)
    ETI logo
    4 In Stock
    ETI 803-232 Room Spirit Thermometer (45 x 195mm)
    (1)
    £3.30 £2.75
    • Measure temperature from -30 to 50°C
    • Low cost solution for measuring temperature in any application
    • Reliable accuracy
    2 Reward Points
    Price Match Guarantee
    803-232
  4. ETI 803-233 Room Spirit Thermometer with Factory Act Classification
    ETI logo
    Lead Time: 1-2 Weeks
    ETI 803-233 Room Spirit Thermometer with Factory Act Classification
    (1)
    £3.30 £2.75
    • In compliance with the Factory Act of 1961
    • Measure temperature from -30 to 50°C
    • ABS plastic case
    2 Reward Points
    Price Match Guarantee
    803-233
  5. ETI 803-292 Wooden Room Thermometer (45 x 205mm)
    ETI logo
    2 In Stock
    ETI 803-292 Wooden Room Thermometer (45 x 205mm)
    (2)
    £4.32 £3.60
    • Made from high quality beechwood
    • Measures temperature from -30 to 50°C
    • Dual scale - Celsius and Fahrenheit
    3 Reward Points
    Price Match Guarantee
    803-292
  6. Comark EFG120C Economy Wall Thermometer
    Comark logo
    Comark EFG120C Economy Wall Thermometer
    (no reviews)
    £8.40 £7.00
    • Temperature range from -40 to 50°C
    • Suitable for hanging or standing vertically
    • Low cost solution for measuring temperature
    7 Reward Points
    Price Match Guarantee
    EFG120C
  7. ETI 810-125 Max/Min Thermometer with Internal Sensor + External Probe
    ETI logo
    2 In Stock
    ETI 810-125 Max/Min Thermometer with Internal Sensor + External Probe
    (1)
    £12.30 £10.25
    • Dual sensors - one built-in for room temperature and another attached to a remote probe
    • Calculate the maximum and minimum values taken over a period of time
    • Temperature measurement range from -49.9 to 69.9°C
    10 Reward Points
    Price Match Guarantee
    810-125
  8. ETI Max/Min Digital Thermometer with Choice of Colour
    ETI logo
    ETI Max/Min Digital Thermometer with Choice of Colour
    (8)
    £14.40 £12.00
    • Triple display - shows MIN/MAX and current temperatures
    • Measurement range from -20 to 69.9°C
    • Ideal for home and the workplace
    12 Reward Points
    Price Match Guarantee
    ETI-MAX-MIN
  9. ETI 810-130 Temp/Humidity Monitor with Humidity Comfort Indicator
    ETI logo
    In Stock
    ETI 810-130 Temp/Humidity Monitor with Humidity Comfort Indicator
    (32)
    £15.00 £12.50
    • Measures the humidity and temperature of the air and displays it constantly
    • Unique comfort level indicator shows at a glance how wet or dry the environment is
    • Exceptional battery life - 10000 hours on 2 x 1.5V AAA batteries
    12 Reward Points
    Price Match Guarantee
    810-130
  10. ETI 810-135 Temp/Humidity Monitor with Temperature Comfort Indicator
    ETI logo
    In Stock
    ETI 810-135 Temp/Humidity Monitor with Temperature Comfort Indicator
    (6)
    £15.00 £12.50
    • Constantly measures air temperature and humidity
    • Temperature comfort level indicator with colour-coded zones
    • Battery life of 10,000 hours
    12 Reward Points
    Price Match Guarantee
    810-135
  11. ETI 810-145 Large Digit Temperature and Humidity Indicator
    ETI logo
    Lead Time: 1-2 Weeks
    ETI 810-145 Large Digit Temperature and Humidity Indicator
    (11)
    £15.00 £12.50
    • Dual screen constantly shows temperature and humidity levels
    • Large-size screen, easy to view from a distance
    • Can be placed on a desk or wall-mounted
    12 Reward Points
    Price Match Guarantee
    810-145
  12. ETI 810-140 Temperature & Humidity Monitor with Remote Probe
    ETI logo
    Lead Time: 1-2 Weeks
    ETI 810-140 Temperature & Humidity Monitor with Remote Probe
    (6)
    £16.80 £14.00
    • Constantly monitor temperature and humidity levels
    • Includes remote probe sensor attached via 3m lead
    • Accurate, reliable results
    14 Reward Points
    Price Match Guarantee
    810-140
  13. ETI 810-155 Therma-Hygrometer with Alarm
    ETI logo
    2 In Stock
    ETI 810-155 Therma-Hygrometer with Alarm
    (no reviews)
    £22.20 £18.50
    • Measures and displays relative humidity and temperature levels
    • Includes remote probe with alarm system when temperatures hit 0°C
    • Can be placed on a desk or wall mounted
    18 Reward Points
    Price Match Guarantee
    810-155
  14. ETI 810-180 Panel-Mount Temperature & Humidity Monitor
    ETI logo
    Lead Time: 1-6 Days
    ETI 810-180 Panel-Mount Temperature & Humidity Monitor
    (no reviews)
    £22.80 £19.00
    • Install on a panel and constantly monitor temperature and humidity
    • Accurate, reliable results
    • Easy to install
    19 Reward Points
    Price Match Guarantee
    810-180
  15. ETI 810-195 Temperature & Humidity Monitor with Low Temperature Alarm
    ETI logo
    3 In Stock
    ETI 810-195 Temperature & Humidity Monitor with Low Temperature Alarm
    (1)
    £24.00 £20.00
    • Dual display of temperature and humidity
    • Audible alert when temperatures below 0°C are detected
    • 3m flexible sensor supplied with wall bracket
    20 Reward Points
    Price Match Guarantee
    810-195
  16. Extech 401014 Big Digit Indoor/Outdoor Thermometer
    Extech logo
    2 In Stock
    Extech 401014 Big Digit Indoor/Outdoor Thermometer
    (5)
    £26.40 £22.00
    • Simultaneously displays indoor and outdoor temperatures
    • Big digit display can be easily seen from a distance
    • Includes wall bracket and 3 metre extension cable with waterproof outdoor sensor
    22 Reward Points
    Price Match Guarantee
    401014
  17. Extech 401014A Indoor/ Outdoor Temperature Alert
    Extech logo
    Lead Time: 1-2 Weeks
    Extech 401014A Indoor/ Outdoor Temperature Alert
    (no reviews)
    £26.51 £22.09
    • Measure and display indoor and outdoor temperatures simultaneously
    • Indoor temperature range: -10 to 60°C / 14 to 140°F
    • Outdoor temperature range: -50°C to 70°C / -58°F to 158°F
    22 Reward Points
    Price Match Guarantee
    401014A
  18. Extech 445702 Hygro Thermometer Clock
    Extech logo
    2 In Stock
    Extech 445702 Hygro Thermometer Clock
    (no reviews)
    £35.94 £29.95
    • Triple LCD display shows time, temperature and humidity levels at the same time
    • Can be placed on a desk or wall mounted
    • User-settable clock alarm
    29 Reward Points
    Price Match Guarantee
    445702
  19. Comark DTH880 Temperature and Humidity Monitor
    Comark logo
    Lead Time: 1-2 Weeks
    Comark DTH880 Temperature and Humidity Monitor
    (no reviews)
    £37.20 £31.00
    • Portable monitor which measures air temperature and humidity levels
    • Mount on a wall, or prop up on a surface with the built-in stand
    • Ideal for any environment - offices, greenhouses, warehouses and anywhere else
    31 Reward Points
    Price Match Guarantee
    DTH880
  20. Extech 445814 Humidity, Dewpoint and Temperature Alert
    Extech logo
    3 In Stock
    Extech 445814 Humidity, Dewpoint and Temperature Alert
    (4)
    £38.40 £32.00
    • Constantly calculates and displays air temperature, humidity and dewpoint
    • Set your own alarms - the indicator will flash a light and sound a beeper when limits are met
    • Wall-mountable (bracket included) or can be propped up using built-in stand
    32 Reward Points
    Price Match Guarantee
    445814
  21. Extech RH200W Multi-Channel Wireless Hygro-Thermometer
    Extech logo
    Lead Time: 1-2 Weeks
    Extech RH200W Multi-Channel Wireless Hygro-Thermometer
    (no reviews)
    £41.87 £34.89
    • Consist of one base station and one wireless transmitter
    • Up to eight transmitters can be wirelessly connected to the base station
    • Base station indicates all temperature and humidity readings and can record the min and max values detected over the measurement period
    34 Reward Points
    Price Match Guarantee
    RH200W
  22. Extech 445815 Temperature, Humidity & Dew Point Alert w/ Remote Sensor
    Extech logo
    3 In Stock
    Extech 445815 Temperature, Humidity & Dew Point Alert w/ Remote Sensor
    (3)
    £42.00 £35.00
    • Monitors air temperature, humidity and dewpoint and constantly displays values
    • User-programmable humidity alarms with visual LED and audible beeper when limits are exceeded
    • Flexible remote sensor fits into small gaps (such as behind walls) or can be clipped onto the indicator
    35 Reward Points
    Price Match Guarantee
    445815
  23. Extech HW30 HeatWatch Humidity/Temperature Stopwatch
    Extech logo
    Lead Time: 1-2 Weeks
    Extech HW30 HeatWatch Humidity/Temperature Stopwatch
    (2)
    £42.00 £35.00
    • Stopwatch/chronograph mode with 1/100 second resolution
    • Fastest/Slowest/Average Lap recall
    • 99 lap counter with 30 lap/split memory
    35 Reward Points
    Price Match Guarantee
    HW30
  24. Extech 445713 Big Digit Indoor & Outdoor HygroThermometer
    Extech logo
    2 In Stock
    Extech 445713 Big Digit Indoor & Outdoor HygroThermometer
    (1)
    £46.56 £38.80
    • Humidity: 10 to 99% RH
    • Temperature: 14 to 140°F or -10 to 60°C
    • Accuracy: °5%RH; °1.8°F, °1°C
    38 Reward Points
    Price Match Guarantee
    445713

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About Indoor & Outdoor Temperature / Humidity Monitors

Measure temperature and humidity in the home, the office, your greenhouse, the lab, and anywhere else with these instruments. You will be able to see if there are cold or warm areas and make adjustments to your heating or cooling system.

Humidity monitors measure, and report the relative humidity (RH) of air or determine the amount of water vapor present in the gas mixture (air) or pure gas.