The controller is suitable for medium and low temperature cold storage and heating equipment temperature control. With temperature measurement, display, control; temperature correction; temperature over-temperature and sensor fault alarm; Factory setting one-key recovery; can preset a group of parameters and one-key recovery; Using the touch button and has a key lock function. Simple and convenient operation, easy to use. Technical parameters: 1.Temperature measuring range:-40℃~99℃ 2.Temperature controlling range:-40℃~85℃ 3.Accuracy:±1℃ at(-30℃~50℃);±2℃ at other range 4.Resolution: 0.1℃ 5.Relay capacity:10A/220VAC 6.Power supply: 220VAC ±10%,50/60Hz 7.Ambient temperature: -5℃~60℃ 8.Probe type: (10KΩ/25℃,B value3435K) Material: plastic Colour: Black Package Contents: 2 x Thermostat 2 x probe 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.