Input Power: DC 12V
Long press SET(5 seconds) to enter the main menu setting
Resolution: -9.9-99.9°C:0.1 °C while other temperature ranges: 1 °C
Measuring inputs: NTC (10K 0.5%) Waterproof sensor 0.5M
Output: 1 Channel Relay Output 250V AC/5A or 16V DC/20A (Depends on the relay)

Programming menu:

Code	Indicating	Set range	Inital Setting
P0	Mode set (Heating or Cooling)	C/H	C
P1	Set return difference	0.1-15	2
P2	Up limit	110	110
P3	Down limit	-50	-50
P4	Temp. Adjust	-0.7-7C	0
P5	Delay start time	0-10 minutes	0
P6	High temp.alarm	0-110 C	off
(P7)	High temp. alarm	0-110 C	off
(P8)	Initial setting	on/off	off

At “OFF” state, Long press + -,start and then recovery to inital set