The Tramex HIPP6 Hygro-I RH Probe Set of 6 Sensors is the most advanced and resilient RH probe on the market today. Used in conjunction with the Tramex CMEXpert II (CMEX2) or MRH III (MRH3) non-destructive moisture meters, the Hygro-i probe provides measurements of humidity, temperature and dew-point in structural materials that include concrete flooring, walls, etc., as well as the environmental conditions within the building or structure. Thus allowing the user to perform in-situ & hood type RH testing to comply with ASTM F2170, F2420, BS8201:2011 & BS8203. Includes x6 Hygro-i probes.