Name: Digital dual temperature controller Temperature measurement range: -55Celsius~120Celsius Resolution: 0.1 Control accuracy: 1Celsius Relay contact current: 10A/220V Temperature sensor: NTC10K Cable length: 1m Power supply: AC110-220V Data saving: yes Operating temperature: 0Celsius~50Celsius Storage temperature: -10Celsius~60Celsius Colour:As shown Material:plastic Package Contents: 3 x STC-3008 Digital Thermostat Temperature Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.