Feature: The product combines the two functions of temperature and humidity measurement, which makes it more usable. The product adopts high sensitivity sensor, the measuring speed is faster, the adoption rate is 0.5s. Digital temperature measuring instrument uses large LCD backlight screen to read data more clearly. The product has an alarm, which makes it easy for the inspector to detect abnormalities quickly. The product has the function of data preservation. It can store up to 100 data, which is convenient for data viewing and sorting. Specification: Model: SW-572 Temperature measurement range: -20.0 ° C ~ 60.0 ° C (-4 ° F ~ 140 ° F) Temperature accuracy: ±0.3°C (±0.5°F) temperature. Resolution: 0.1 ° C (0.1 ° F) Humidity measurement range: 0% RH~100% RH Humidity accuracy: ±3% RH Humidity resolution: 0.1% RH Reaction time: > 2s (depending on the type of heat exchange) Humidity reaction time: 8s (humidity reached 63%, 25 ° C, 1 m / s air flow time) Sample rate: 0.5 seconds temperature. Maximum/minimum alarm: Yes Humi. Max / Min Alert: Yes Temp .Max / Min Measurement: Yes Humi. Max / Min measurement: Yes Storage: 100 Data retention: Yes Backlight automatically turns off: 10 minutes Automatic / manual shutdown: 30 minutes Power: 3x1.5V AAA battery(no included ) Working environment: -20.0 ° C ~ 60.0 ° C, 0% ~ 100% RH Storage environment: -10.0 ° C ~ 60.0 ° C, relative humidity 20% ~ 70% Package list: 1 * Digital Temperature/Humidity Detector 1 * User manual Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.