1 1/2" Discs Wireless Thermostat 2 max voltage:250VAC/24VDC;max current:16A 3 ... ,CQC,CB,TUV,ROS Temperature Sensor Wireless Name: Temperature Sensor Wirelessmodel:KI-31Technical parameters: certificationsCQC,VDE,UL,CUL AC250V 50~60Hz 5A ... below 90%, environment temperature below 40.Passed certifications :CQC UL VDE SGSOur factoryCertificates 1/2" Discs Wireless Thermostat