Remote Relative Humidity (RH) Monitor and Digital Thermometer. The remote ambient temperature / relative humidity sensor is mounted on a cord over 7' long. Place the highly accurate sensor inside a desiccator, refrigerator, drying or other environmental chamber and view simultaneous displays of temperature and RH outside on the large LCD. Recalls min/max readings on both parameters. ºC and ºF selectable. Stands or wall mounts. N.I.S.T. traceable certificate of compliance available.