Feature: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 the software.2. The recorder and the computer are connected through a USB cable. The software automatically reads all the data in the device and generates a data curve graph. The software has the functions of storing, querying, and exporting data and supports multiple formats for export.3. The recorder is equipped with a highaccuracy temperature and humidity sensor for accurate temperature and humidity measurement. Fully charged once, recorded once every 10 minutes, can work continuously for one year.4. This recorder has a large LCD screen, which can display realtime temperature and humidity values, limit temperature and humidity values and / temperature units can be freely selected.5. Builtin buzzer, with overlimit alarm function, can automatically change the frequency of recording alarms to ensure that the recorded data truly reflects changes in the environment.Specification:Item Type: Temperature and Humidity LoggerMaterial: ABSSize: Approx.120x113x33mm / 4.72x4.45x1.30inApplication: It is widely used in every link 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.Equipment Power Supply: DC5V power supply or battery power supplyBattery: 1 x battery 2500mAh (not included)Recording Interval: 5s-18hMeasurement Update: 2-255 seconds can be setBattery Life: The equipment can work continuously for 1 year once it is full chargedMaximum Battery Cycle Charging And Discharging Times: 1200 timesMeasuring Temperature Range: -40-80C (-40~180)Measuring Humidity Range: 0-100%RHMeasurement Accuracy:0.1 (25) typical value (temperature)1.5%RH (5~95%RH, 25) typical value (humidity).Package List:1 x Temperature and Humidity Logger(Battery Not Included)1 x External Sensor1 x Sensor Bracket1 x Data Cable2 x StickerNote:1. Please allow 12in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.