Measurement Temperature Range:-50 ,100 (-58F,212F) Humidity Range:0 - 100% RH Measurement Temperature Range:-50 ,100 (-58F,212F) Humidity Range:0 - 100% RH Accuracy : Temperature:0.3 (32.54F) Humidity : 3% RH Power Supply: Power : AC220V Power Consumption: : ¡Â1VA Environment Work Condition : :-20,65 (-4F,149¨¬F) Storage Condition: : -40,85 (-40F,185¨¬F) Resolution Accuracy:0.1/0.1%RH Communication:RS485 MODBUS RTU Display : Programmable 1 Line LED Switch Display Memory Capacity: Up to 20000 data points Data Sampling Interval:1s to 9 h (user selectable) Safe Protection : : Voltage Tolerance : Input & Power Supply >2 KV Input & Output > 2 KV Power Supply & Output >1 KV insulation : >5 M¥Ø. SIZE: 89X1.89X3.15 inch G.W/N.W: 500g/400g per piece Dimensions: 48X48X80 mm.