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Extech RH520A Humidity/Temperature Chart Recorder with Detachable Probe (Discontinued & Replaced with Extech RH550)
Chart Recorders, Extech Instruments, Temperature & AirThis is supersede to Extech RH550. Graphical datalogger for Humidity/Temperature measurements and Dew Point calculation.$329.99 -
Extech RH550 Humidity/Temperature Chart Recorder with Detachable Probe (Replaces RH520A)
Chart Recorders, Extech Instruments, Temperature & AirPrice includes calibration and certification! Graphical datalogger for Humidity/Temperature measurements and Dew Point calculation.$519.00