Item Type:Thermostat Temperature Control Accuracy: 1 C Temperature Control Range: -50~110 C Temperature Measurement Accuracy: 0.5C Data Saving: Yes Working Temperature: 0-50 C Output Capacity: Up to 10A Mounting Hole Distance: M3 (Screw) Size:76 x 55 x 31mm / 2.99 x 2.17 x 1.22in Output Power: 120W for DC12V/240W for DC24V/1500W for AC220V(Optional) Setting method: 1. Set the left control temperature Press the SET button to the left of the display to flash, press the up and down buttons to adjust the desired temperature, press the right and left buttons (any button) to save and exit. 2. Set the right control temperature Press the SET button twice to flash the left display, press the up and down keys to adjust the desired temperature, press the left and right buttons (any button) to save and exit. First, determine the working mode Press the SET button for more than 3 seconds, enter the control parameter setting, press the or key to select the menu to be adjusted, then press the SET button once to enter the corresponding control parameter setting state, press the or key to adjust the control parameters to be modified. After adjustment, press SET to exit, or the system delays for 5 seconds to exit. Second, set the difference Press the SET button for more than 3 seconds, enter the menu display, use the or button to adjust to the D code when the screen appears, press the SET button to display the hysteresis setting value, then press or "" key adjustment parameters.