Feature: 1. Large LED display and 4 buttons for clear reading and easy operation. 2. Wide Humidity Measuring Range: 1%~99.9%RH; Control Accuracy: +1%RH. 3. Includes high/low humidity limit and delay protection function. 4. All parameters can be set to default setting after short circuit. 5. Comes with a humidity controller sensor probe. Specification: This digital air humidity controller is with wide measuring range, comes with a humidity controller sensor probe. Features: Large LED display and 4 buttons for clear reading and easy operation. Wide Humidity Measuring Range: 1%~99.9%RH; Control Accuracy: +1%RH. Includes high/low humidity limit and delay protection function. All parameters can be set to default setting after short circuit. Comes with a humidity controller sensor probe. Specifications: Material: ABS Input Voltage: 12V / 220V(Optional) Output Current: 10A Measuring Range: 1%~99.9%RH Measurement Error: ±3% RH Power Consumption: ≤3W Resolution: 0.1%RH Control Accuracy: +1%RH Refresh Rate: 0.5s Sensor: AM2301 Working Temperature: -10~60°C Humidity: 20%~85% Item Size: 8.5 * 7.5 * 3.4cm / 3.35 * 2.95 * 1.34in Item Weight: 100g / 3.53oz Package Size: 11.5 * 7.8 * 7cm / 4.53 * 3.07 * 2.76in Package Weight: 166g / 5.86oz Package List: 1 * Humidity Controller 1 * Sensor Probe 1 * User Manual (English) Package List: 1 * Humidity Controller 1 * Sensor Probe 1 * User Manual (English)