1) Temperature controller and humidity controller in one unit2) Temperature sensor and humidity sensor should be matched3) Basic error: d ?(1%F.S.+1D)4) Value setting range: error adjusting range 0-?9.9% RH; RH control and alarm value 0-100% RHProduct size (width x height x depth): WHG-7000: 48 x 48 x 85mmWHD-7000: 72 x 72 x 85mmWHE-7000: 48 x 96 x 85mmWHA-7000: 96 x 96 x 85mm producing area:China payment:T/T, L/C at sight supplying capacity:20,000pcs/month