Sens-H is a series of detachable measuring probes for relative humidity and air temperature measurments. The probes, depending on the version, measure humidity in the range of 0… 100% RH and temperature -50… + 100 ° C or even -100… + 200 ° C. A special feature of Sens-H probes is their extreme measurement accuracy - up to ± 0.8% RH (or even ± 0.5% RH) and ± 0.1 ° C. Sens-H probes are compatible with selected transmitters (SiOne, MiOne, LiOne, PiOne) and data loggers (RiOne) from the APONE offer. Sens-H probes communicate with these devices using a digital interface, which ensures measurement reliability (no distortions in the transmitted data). Standard probes (e.g. Sens-HS) are dedicated to applications related to the measurement of humidity and temperature in HVAC systems, BMS and EMS systems and industrial probes (e.g. Sens-H-ICxxxx), used in particularly difficult applications related to e.g. with a drying process (resistant to higher temperatures, environmental influences, ...). The probes can be connected with other APONE measuring devices directly or by using dedicated 1, 2 or 5 m long cables. Each Sens-H probe is delivered with factory calibration certificate. Additionally, each probe can be delivered with a calibration certificate in an accredited laboratory with the PCA mark. The construction of the Sens-H measuring probe allows for its calibration, i.e. adjustment and calibration in the future. Calibration is essential to maintain the probe's excellent measurement performance throughout its life.