100% Brand New and High Quality Features: This digital humidity and temperature controller has a wide humidity measurement range and adjustment range, it is equipped with humidity controller sensor probe and temperature sensor probe. This humidity and temperature controller is an excellent and convenient multi-function device to control temperature and humidity. The temperature and humidity controller has the characteristics of high accuracy, high sensitivity, high stability. Control the temperature by setting the temperature setting value and the difference value. It can be installed directly or embedded in the industrial control panel, convenient and fast. Specification:Model:STC-3028Input Voltage: AC110 - 220V, DC24V, DC12V Temperature Measurement Range: -20 - +80Humidity Measurement Range: 00%RH - +100%RHDaccuracy: 1, 0.1%RH Relay Output Contact Capacitance: 10A/240VACshell Material: PC+ABS Flame Retardant Panel Size: 75x3 4mm/2.95x1.34 inches Installation Size: 85x70x2 8mm/3.35x2.76x1.10inchCable Length: 1mColor: GreyQuantity: 1 SetNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 Set Temperature & Humidity Controller -Instruction:Hold the "Up-Triangle 1" button for 3 seconds to enter the status. The first group turns on the temperature value (20 by default). Keep the "Down-Triangle 1" button pressed for 3 seconds to stop the temperature value (default 30) and can be adjusted by the add and subtract button. Hold the "Up-Triangle 2" button for 3 seconds to enter the status. The first group turns on the humidity value (40% by default). Keep the "Down-Triangle 2" button pressed for 3 seconds to stop the humidity value (60% by default) and can be adjusted by the add and subtract button. Press the "Down-Triangle 1" and "Down-Triangle 2" button at the same time for 3 seconds to reset the factory settings. Temperature CorrectionCorrected value = measured value + error valueFor example, we measure the temperature at 25.6 degrees, but the actual is 25.8 degrees. You can press 0.0 for the up and down-triangle 1 for 3 seconds. Then set to 0.2. Then the heaviest temperature is 25.6 + 0.2 = 25.8.Humidity correctionsAs with temperature correction, press Up-triangle 2 and Down-triangle 2 at the same time for 3 seconds. Note:"Up-Triangle 1" = 1"Down-Triangle 1" = 1"Up-Triangle 2" = 2"Down-Triangle 2" = 2If you have a question,