Features Mainly used in equipment and occasion that require humidification or dehumidification High-quality humidity-sensitive capacitors with strong environmental adaptability Large-screen LED display improves readability and with high accuracy The product has default recovery and power-off storage function Small size and light weight, easy to carry Specification:Item Type: Humidity Controller Model: SVWL-8040 Humidity Measurement Range: 1% RH-99% RH Sensor: SHT20 Measurement Accuracy: ± 1% RH Relay Capacity: ≤3W Total Power Consumption: -10% RH-60% RH (no frost) Operating Environment Humidity: 20% H-85% RH Input: A capacitive sensor Relay Contact Current: 10A / AC85-260V Line Length: 1.5 meters Overall Size: Approx. 75 x 34.5 x 85mm / 3 x 1.4 x 3.3in Opening Size: Approx. 71 x 29mm / 2.8 x 1.1in Function: Control Range: 1% RH-99% RH Compatible with humidification and dehumidification control With delayed start function Humidity upper and lower limit setting function, factory parameter lock function Support factory reset Support power-off storage (parameters set by sudden power-off are still valid) Support humidity correction Applicable Scenarios: Mainly used in equipment and occasion that require humidification or dehumidification, such as humidifiers, dehumidifiers, desiccants, clothes dryers, drug refrigerators, shade cabinets Package List:1 x Humidity Controller Package List 1 x Humidity Controller