100% brand new and high quality Material: Electrical components Quantity: 1pc Color: See pictures Description Classification: DC 12V/AC 220V Working principle: digital temperature control Power: 10A Temperature range of temperature controller: -19~99 Celsius degrees Product introduction: Using MCU control system and highly accurate temperature detection probe, this product is clearly better than other products of the same category in terms of temperature control performance and accuracy. This product uses the design of three display windows, which can perform real-time display for start and stop value. Moreover, it has other functions such as intermittent work, time switch, etc. It can be widely used in greenhouse cultivation, aquaculture and animal husbandry, computer lab temperature control and other fields. It is also a great helper for household life Main parameters: Product name: Highly accurate digital temperature controller Specification and model: XH-1411 Temperature measurement range: -55~+120 Celsius degrees Temperature measurement accuracy: 0.3 Celsius degrees Resolution: 0.1 Celsius degrees Temperature control range: -19~99 Celsius degrees Control accuracy: 1 Celsius degree Temperature measurement probe: NTC10K/B3950 standard 1m water-proof probe Power supply voltage: DC 12V Display color: red, green, blue, yellow (alternative) Applicable environment: -25~55 Celsius degrees, humidity 20%~85% (no condensation) Output type: 10A relay output Appearance size: 90*60mm Open hole size: 70*50mm Usage method: 1. Plug the plug of this product to a household socket. If the screen displays temperature, it means the power supply has been correctly connected. 2. Put the temperature control probe into the places that need temperature control, and set the start and stop temperature according to your needs. 3. Plug the plugs of heating and refrigeration devices to the socket of temperature controller, and then you can achieve temperature control. Operation instructions: After power-on, if the temperature is within the range, you should immediately start the output and make it stop when it reaches the set value. Start temperature stop temperature: refrigeration mode For example, in summer, you want to control the greenhouse to start the scavenger fan when the temperature is higher than 35 Celsius degrees and stop at 32 Celsius degrees, then you should set the start value as 35 and stop value as 32. SET: function button/power-on & power-off button In the state of power-on, you can switch off by a long press for 3 seconds. After switched off, it will still remain power-off if there is no power supply. In the state of power-off, you can switch on by pressing SET once. After switched on, it will still remain power-on if there is no power supply. In the state of normal temperature control, you can switch between F-1~F-3 by pressing SET once. F-1 intermittent work mode unit: minute left: start minute right: stop minute F-2 time switch left: hour right: minute 99h59mins max F-3 time switch left: hour right: minute 99h59mins max Temperature correction: Enter the temperature correction function by removing the controller plug and pressing SET to supply power. The screen displays 00--. You can increase or decrease temperature on the basis of the original temperature, maximum range -9.9~+99. After correction: Real-time temperature = the temperature before correction + the corrected value Press (start+-) power-on to enter self-check function; Press (stop+-) power-on to restore factory settings. Restore factory settings: If there is some setting mistake or setting disorder, you can press the two stop buttons to restore factory settings. When the screen displays 88-888-88, and the buzz gives out a long sound