EXTECH RH/Temp Chart Recorder RH520A-220

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Country of Origin-
Dimension (L x W x H)127 x 196 x 23 mm
Weight357 g

Extech RH520A Temperature + Humidity Chart Recorder. The RH520A measures and displays Temperature, Humidity, and Dew Point. The remote (detachable) probe senses the ambient conditions while the LCD display graphs and provides numerical representation of the readings. Programmable audio‐visual alarms alert the user when ambient conditions reach alarm presets. The optional alarm module permits automatic relay switching when alarm presets are reached. The RH520A Internal Memory can store up to 49,152 measurements for later transfer to a PC.

Remote sensor
Sensor cable
LCD Display
Swivel keypad / table‐top stand
PC interface jack
Universal alarm module jack
AC adaptor jack
DATA RESET button (clears recorded measurement data and alarm history)
Temperature units select switch (C or F)
PROGRAMMING RESET button (clears programming changes but retains measurement data and alarm history)
Display CONTRAST adjust
Sensor cable storage area
'AA' 1.5V batteries
Sensor cable run
Wall mount holes

Operating TemperatureCONTROL MODULE and DISPLAY:
0 to 50oC (32 to 120oF)
SENSOR: ‐28 to 60oC (‐20 to 140oF)
Operating HumidityCONTROL MODULE and DISPLAY:
90% RH max.
SENSOR: 95% RH max.