Description:  Reptile Aquarium Tank Temperature Controller Upper Lower Thermostat Socket.     Specification:  Temperature measuring range: 0℃ - 70℃.  Sensor: NTC10K B3435.  Resolution: 0.5℃.  Control accuracy: 1℃.  Output Type: Relay (contact capacity 250V, 10A), the actual use of the double relay, to ensure high reliability, and a current rating of 20A.  Working voltage: AC85 ~ 242V 50Hz / 60Hz.  Control Type: Heated / Cooled / Automatic hot and cold.  Instrument within the parameters:  Symbol Project Content Factory settings Unit.  HS Upper temperature limit 1-70 30℃.  LS Lower temperature limit 1-70 25℃.  HC Cooling / heating switch 00-70 00 ℃.  (Note: HC heating / cooling state switching data. 00 = heated state, 01 = refrigeration state, other values = no output) Size: 87mm x 135mm x 45mm.     Parameter Settings Operation:  1) Power display observation value, if not change the setting, the original setting data is automatically credited automatic control operation.  2) Change the accused temperature setting: in an energized state long press SET key to enter the menu mode, according to the corresponding parameters to adjust, press "up" or "down" key to change the set value, "up" for increasing the temperature setting, "down" to reduce the temperature setting, press the "SET" will adjust the good data memory, after the temperature controller returns to control operation.  3) actual use, please do not the lower limit higher than the upper limit.  4) Temperature sensor short circuit fault tips Err.     Installation:  The machine is compact design, the ambient temperature of the instrument must be kept between -5℃ ~ + 65℃, the instrument shall be placed in the absence of moisture and high pressure occasion, and to ventilation to facilitates heat release.     Package includes:  1 x WST-D1 Temperature Controller