Dimensions 32 x 74 mm are miniature temperature controllers suitable for medium temperature shutdown defrost refrigeration systems, with 1-way compressor (refrigeration) output, there are 2-way NTC or PTC probe input: one is the storage temperature, the other is the temperature probe (P4) Input is optional, it needs to be specified when ordering, you can choose whether to use it through parameters, and connect it to the 5-pin hot key On the No. 2 and No. 4 (left or right number) terminals of the programming key interface (connectors are required and must be ordered separately, type No.: NG6-K), it can be used to measure the condensation temperature alarm or to display the temperature of a certain point; the digital input terminal also Can be set as a third temperature probe (P3) input (use or not can be selected by parameter). The hot key programming interface can be connected to the programming key, and it can also be connected to the XJ485-CX communication conversion module to connect to a compatible ModBUS-RTU protocol network, such as DIXELL's XWEB series monitoring system.