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Temperature and Humidity Datalogger

Extech 42280A

Model: 42280A Go to Product Support
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The Extech 42280A is designed to continuously monitor temperature and humidity so you can maintain ideal storage conditions in laboratories and cleanrooms while ensuring comfort in hospitals and other indoor working facilities. This datalogger with max/min mode records up to 24,000 data sets including date and time stamp and features both audible and visible alarms. You can generate PDF reports that show trending graphs, or export data to a Microsoft® Excel spreadsheet, making it easy to identify irregularities in temperamental environments.

£239.00 ex. VAT
£286.80 inc. VAT (20 %)
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  • Easily identify problems

    The easy-to-read LCD screen simultaneously displays humidity, temperature, date, and time.

  • Continuously monitor temperature and humidity

    Simultaneously monitor temperature and humidity on the LCD screen. Audible and visible alarms will alert you when temperature or humidity have exceeded or dropped below indicated set points.

  • Log more data

    Store up to 24,000 recorded data sets with the date and time stamp. The 42280A will export a PDF report or spreadsheet with data and graphs when plugged into a PC.

General Specifications
Dew Point
0°C to 50°C (32°F to 122°F)
Max Resolution: 0.1°C/°F
Temperature: 24,000 points
Humidity: 24,000 points
Relative Humidity
0 to 100% RH
Max Resolution: 0.1% RH
Basic Accuracy: ±3% RH
Relative Humidity Basic Accuracy
Sample Rate
30 sec, 5 min, 10 min, 30 min, 60 min, 90 min, 120 min
-20°C to 70°C (-4°F to 158°F)
Max Resolution: 0.1°C/°F
Basic Accuracy: ±0.9°F (±0.5°C)
Additional Details
120.7 mm × 88.9 mm × 38.1 mm (4.75 in × 3.5 in × 1.5 in)
4 × AA (1.5 V) batteries
2 years
163 g (5.7 oz)
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Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech 42280A - Model: 42280A

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£239.00 ex. VAT £286.80 inc. VAT (20 %)