Features 1、Wide Temperature And Humidity Range: This LED display temperature humidity detector accurately measures temperature from -20°C to 80°C with an accuracy of ±1.0°C and humidity from 0% to 100% RH with a tolerance of ±4% RH. This broad range makes it suitable for various applications, from home and office environments to industrial settings. 2、High Accuracy Sensor Technology: Utilizing a for SHT C3 high accuracy sensor, this industrial temperature and humidity meter boasts a high sampling rate of up to 2 times per second, ensuring quick and good readings. This feature is crucial for monitoring fluctuating conditions in real time, providing you with accurate data when you need it most. 3、Convenient Hideaway Stand: The greenhouse hygrometer thermometer is equipped with a concealed retractable stand on the back, allowing for easy placement on any desk or flat surfaces. This thoughtful design ensures that the device remains stable and accessible, making it suitable for home or office use. 4、Customizable Alarm System: Users can set upper and lower limit thresholds for both temperature and humidity, which triggers audible alarms and flashing indicators if measurements exceed these thresholds. This advanced alert system helps you stay informed about environmental conditions, ensuring timely interventions when necessary. 5、Extended Probe Capability: The room temperature humidity gauge features an external temperature and humidity probe with an impressive 5 meters length, allowing for easy placement in challenging spots while still obtaining accurate readings. It also includes a 3.5mm output interface compatible with standard headphone jacks for connecting to optional 5-12V alarm speakers (not included), further enhancing its functionality. Specification Item Type: Temperature and Humidity Detector Material: ABS, LED Measurement Method: External 5m Probe Temperature: Approx. -20°C-80°C / -4°F-176°F Accuracy: ±1.0°C / ±2°F Resolution: 0.1°C / 0.1°F Range: 0-100%RH Accuracy: ±4%RH Resolution: 0-99 (0.1)%RH, 100 (1)%RH Package List 1 x Temperature And Humidity Meter 1 x Probe 1 x Data Cable 2 x Hanging Hooks 1 x Probe Bracket 3 x Screws 1 x Positioning Sticker 1 x Manual