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Humidity/Temperature Chart Recorder with Touch Screen

Extech RH550

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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 6.5 ft (2 m) cable. This recorder is useful in office buildings, conference rooms, labs, hospitals, cleanrooms, greenhouses, food storage facilities, and more.

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  • Large LCD Monitor

    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

  • Multi-function Display

    Simultaneous numerical and graphical display of real-time Humidity, Temperature and Dew Point readings, plus Time and Date in Live Mode

  • For Closed Environments

    Probe can either be clipped directly onto the tablet or attached to a cable to extend up to 6.5 ft (2 m) for measurements in closed environments

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General Specifications
Dew Point
-4 to 176°F (-20 to 80°C)
Dew Point Max Resolution
16 GB
Relative Humidity
10% to 95%
Relative Humidity Basic Accuracy
Relative Humidity Max Resolution
Sampling Rate
1 sec to 24 hrs
Temperature (Air)
14 to 104°F (-10 to 40°C), -4 to 176°F (-20 to 80°C)
Temperature (Air) Basic Accuracy
±0.9°F (±0.5°C)
Temperature (Air) Max Resolution
Additional Details
7.8 × 4.6 × 1" (198 × 118 × 25.7 mm)
Internal rechargeable Lithium Polymer battery, universal AC adaptor with multi-plugs (US, EU, UK, AU)
2 years
12.9 oz (365 g)
Related Documents
Export Restrictions

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 RH550