RH522 / Extech Humidity and Temperature Probe For Extech Model RH520A Paperless Chart Recorder The RH522 is a replacement Humidity Temperature Probe for Extech Paperless Chart Recorders. -20 to 140 degrees F (-28 to 60 ...
RH520A-NIST / Extech Humidity and Temperature Chart Recorder with RS-232 Computer Interface and NIST Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date.
RH520A-220-NIST / Extech Humidity Plus Temperature Chart Recorder, 220V with Detachable Probe and NIST Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date.
The Extech RH401 psychrometer combines accurate humidity and dewpoint readings with a convenient, non-contact infrared thermometer. The Extech RH401 psychrometer has a triple display with backlighting, showing your ...
RH350-NIST / Extech Digital Hygro-Thermometer Psychrometer with NIST Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint.Memory stores up to 99 data records.
The Extech RH350 dual input hygro-thermometer psychrometer has two Type K external probe inputs for superheat and memory that can store up to 99 data points.