1The 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. 2It 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. 3Fully charged once, record once in 10 minutes, can work continuously for one year, builtin storage function, can record temperature and humidity data. 4This recorder has a large LCD screen, which can display realtime temperature and humidity values, limit temperature and humidity values, and freely select Fahrenheit and Celsius temperature units. 5Equipped 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. 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. 1 x Temperature Humidity Recorder (Battery Not Included) 1 x Data Cable 2 x Wall Sticker 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.