Features 1、MEASURING RANGE: The temperature measurement range is 0℃‑60℃ (32℉‑140℉), the humidity measurement range is 0‑99%RH, with high resolution and accuracy. 2、LCD BACKLIGHT: The detector is equipped with a backlit LCD screen, making it convenient to use at night or in any dark environment, clear and intuitive. 3、HIGH ACCURACY: The detector adopts high accuracy sensor and high sensitivity capacitive microphone, with fast instantaneous response characteristics. 4、ALARM FUNCTION: Supports upper lower alarm threshold setting. When it is above or below the set value, the red background light will remain with flashing alarm. 5、PORTABLE DESIGN: The temperature and humidity detector is powered by batteries (not included), with handheld design, making it easy to use anytime, anywhere. Specification Item Type: Temperature Humidity Detector Product Model: NF-563 Temperature Measuring Range: 0℃-60℃ (32℉-140℉) Temperature Measuring Accuracy: ±0.1℃ (±2.0℉) Temperature Measuring Resolution: 0.1℃ (0.2℉) Sensor: High Accuracy Digital Temperature and Humidity Sensor Humidity Measuring Range: 0-99%RH Humidity Measuring Accuracy: ±5%RH Humidity Measuring Resolution: 0.1%RH Display: High Definition LCD Automatic Shutdown: 5 Minute Automatic Shutdown without Operation LCD Backlight: Yes Battery: 3 x AAA Battery (battery not included) Package List 1 x Temperature Humidity Detector