Features 1、The recording interval, alarm interval, alarm delay, timing start and stop, button sound, upper and lower limits of temperature and humidity can be modified through software. 2、It can be connected to a computer with a USB cable to automatically read all the data in the device and generate a data curve graph. It has the functions of storing, querying and exporting data, and supports exporting in multiple formats. 3、Fully charged once, record once in 10 minutes, can work continuously for one year, built‑in storage function, can record temperature and humidity data. 4、This recorder has a large LCD screen, which can display real‑time temperature and humidity values, limit temperature and humidity values, and freely select Fahrenheit and Celsius temperature units. 5、Equipped with high-precision temperature and humidity sensors, built-in buzzer, with over-limit alarm function, it can automatically change the frequency of recording alarms to ensure that the recorded data truly reflects changes in the environment. Specification Item Type: Temperature Humidity Recorder Material: ABS Product Size: Approx. 120 x 113 x 33mm/4.7 x 4.4 x 1.3in Recording Interval: 5S-18H Measurement Update: 2-255 seconds can be set Battery Life: Once full charge device can work continuously for 1 year Battery: 1 x 18650 Battery 2500mAh (Battery Not Included) Maximum Battery Cycle Charge and Discharge Times: 1200 Times Measuring Temperature Range: -20-60℃ (-4℉-140℉) Measuring Humidity Range: 0-95%RH Measurement Accuracy: ±0.1℃ (25℃) Typical Value (Temperature), ±1.5%RH (5~95%RH, 25℃) Typical Value (Humidity) Equipment Power Supply: DC5V Power Supply or Battery Power Supply (A 18650 Battery 2500mAh) Purpose: This thermometer and hygrometer is widely used in all aspects of family housing, computer room, workshop, storage, drug store, laboratory, library, office, logistics cold chain and other places to monitor and record environmental temperature and humidity. Package List 1 x Temperature Humidity Recorder (Battery Not Included) 1 x Data Cable 2 x Wall Sticker