Digital Humidity Controller 1%-99% RH with HM-40 Sensor - Precise Air Humidity Control for Home, Greenhouse & Grow Tents

Features: 1. Wide humidity measuring range and control range from 1%RH to 99%RH. 2. 3-bit LED digital tube displays the humidity clearly. 3. Built-in humidity calibration function. 4. Robust shell design, waterproof and dustproof. 5. Accurate humidity control, stable performance. Specification: Model: SVWL-8040 Humidity measuring range: 1%-99%RH Humidity control range: 1%-99%RH Measuring error: 0.03 Power supply: AC 220V Current: Max. 200mA Data retention: Yes Relay contact current: AC 10A/220V Operating temperature: 0~50 Storage temperature: -10~60 Size: 84*80*38mm / 3.3*3.1*1.5in Package weight: Approx. 212g/7.5oz Package List: 1 * Humidity Controller 1 * Temperature Sensor Probe with Cable