WIFI Tuya Remote Dual Channel Temperature Controller Intelligent Heating and Cooling Temp Difference Control Alarm Switch 220V Temperature control mode: Mode 1: Connect one probe to control dual output The temperature collected is from one probe, and one output can control high on low off (cooling) or low on high off (heating). The two control modes can be set, including high on low off (cooling), low on high off (heating), and low on high on (alarm) Mode 2: Connect two probes to control dual output The temperature is collected from two probes. One output can control high on/low off (cooling) or low on/high off (heating). The two controls can set the working mode, selecting high on/low off (cooling), low on/high off (heating), low on/high on (alarm), and high on/low off (temperature difference) Note that at this point, one output corresponds to the temperature value of one probe, and the other output corresponds to the temperature value or temperature difference between the two probes The controller is equivalent to two independent single circuit temperature controllers or a temperature controller plus a temperature difference controller Featured features: ● Real time synchronous feedback of remote switchgear status and temperature Independent operation without WIFI, achieving single machine control function ● Output can be turned on or off remotely or manually on site (before reaching the set value) During temperature control, high opening and low closing can be used to control cooling (cooling), or low opening and high closing can be used to control heating (heating). During temperature difference, high opening and low closing can be used to control thermal cycling Remote high and low temperature alarm APP push function ● APP remote temperature calibration function, the APP can display the actual temperature, start temperature, stop temperature, and upper and lower alarm temperatures The main account can share devices with others, and devices can only be added to one main account Attention: Alarm can only be achieved when both the device and mobile phone are online. Without a network, it's like a phone cannot make a call without a signal! _x000D_