<b>Technical Parameter:</b><br> Resolution: 0.1°C <br> Power consumption: <3w<br> Sensor: NTC sensor(1pc)<br> Accuracy: +1°C(-50°C~70°C )<br> Sensor error delay: 1 minute<br> Ambient temperature: 0°C -60°C <br> Storage temperature: -30°C -75°C <br> Relative humidity: 20-85%(No condensate)<br> Temperature measuring range: 50°C -99°C <br> Power supply:110V/220VAC+10%, 50/60Hz<br> Relay contact capacity: Cool(10A/250VAC); Heat(10A/250VAC)<br><br> <b>Specification:</b><br> Mounting size: 71(L)*29(W)(mm)<br> Front panel size: 75(L)x34.5(w)(mm)<br> Sensor length: Im (include the probe)<br> Product size: 75(L)x34.5(W)x85(D)(mm)<br><br> <b>Operation Instruction:</b><br> 1.Under controller normal working status, press and hold “ ” key for 3s can turn off the controller; Under controller “off” status, press and hold “ ” key for 3s can turn on the controller.<br><br> 2.Under the controller normal working status, screen displays the current temperature value; the controller can also switch the working mode between heating and cooling.<br> (1)Controller starts refrigerating with cool indicator light on when the measuring temperature ≥ temperature set value + difference value, and the refrigerating relay is connected.<br> The “Cool” indicator light flashes, it indicates the refrigerating equipment is under compressor delay protect status.<br><br> (2)When the measuring temperature ≤ temperature set value, the cool indicator light on, and refrigerating relay disconnects.<br> System starts heating when the measuring temperature value ≤ the temperature set value-difference value, and the “Heat” indicator light on, and the heat relay connects.<br> When the measuring temperature ≥ temperature set value, the “Heat” indicatorlight is off, and the heat relay disconnects.<br><br> <b>Package Included:</b><br> 1X STC-3000 LCD Digital Temperature Controller Thermostat Regulator Cooler Heater Temperature Sensor