widely used in workshops, offices, plants, libraries, computer stations, laboratories and warehouses. ht-6292, ht-6850. product synopsis model: dew point meter ht6292 measuring range: dew point –40-40℃ humidity 0-100%rh temp -10-65℃ accuracy: dew point ±0.5℃ humidity 2.5%±1%rh temp ±0.5℃ display: lcd display resolution: 0.1℃ time response: 2℃/s power supply: 4x1.5v aa (um-3) battery operating conditions:0-+45℃(32℉-104℉),≤90%rh dimensions: 161x69x32mm weight (not including probe): 202g e－mail：sale@landteknet.com landtek@126.com skype: samantha518 contact person : samantha sun (miss)