Accessories

Extech RH300-CAL

Humidity Calibration Kit
33% and 75% Humidity Calibration Reference

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Extech RH522

Humidity and Temperature Probe For Extech Model RH520A Paperless Chart Recorder

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Extech TP890

Thermistor probe (-4 to 158°F)
-4 to 158°F (-20 to 70°C) Thermistor probe with 1.2° resolution

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Extech RH550-C

Extension Cable for RH550-P
Spare/Replacement Cable for RH550-P Humidity/Temperature Probe (6 ft /1.8 m)

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Extech RH550-P

Humidity/Temperature Probe for RH550
Spare/Replacement Humidity & Temperature Probe for RH550

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