W1209 Digital LED DC 12V Temp Temperature Heat Cool Control Switch Module On/Off Controller Board + NTC Sensor 40% off 1209 Intelligent Digital Temperature controller Temperature range -50~110 Input voltage DC12V Temperature precision 0.1 Refresh rate 0.5S Temperature input BTC(10%) waterproof Temperature Overall power consumption Static current Output measurement One road 10A relay Display form 0.28inch red digital tube Return difference accuracy 0.1 Weight 24g(With package) High temperature protection 0~110s Dimension 48*40*15,8mm(L*W*H) Resolution ratio -9,9-99.9 at 0.1 other 0.1 Package PE Using Method Connect to the power supply and load, it is start to controlling power supply and displaying measurement temperature at this point. Pre onceSET key board,temperature flashing on display screen. Pre+/-key board to set the temperature range.finished the setting,pre once SET key board to confirm back.Controllet set automatica relay on power,relay input is 10A can meet the high powers. Please make sure circuit board is correct. Indicator light,digital tube status introduction. Indicator light:Light off means relay disconnect, light on means relay connect Digital. Tube:Display LL means open the road for sensor,display HH means forced disconnect relay once exceed the measurement.Display---- means high temperature protection. Parameter function description. Pre the SET five seconds enter into menu set.Pre +/-key board to switch the PO.P8.Pre the SET for 10 seconds then no button controller confirm back automatically. Setting table Enter into menu by preed the SET long time Code Code introduction Set range Factory settings PO Cooling/heating C/H 0 P1 Return different set 0.1~15 2 P2 Maximum upper limit 110 110 P3 Minimum setting limit -50 -50 P4 Temperature correction -7-7 0 P5 Time delay automatic time 0-600 0 P6 High temperature alarm 0-110 off Pre the + -under the state of power off , reset to factory settings after on power