Feature 1Use highquality temperature and humidity sensors for temperature and humidity data measurement. 2WIFI wireless transmission is adopted, and data can be easily uploaded online with the help of field network. 3When communication is disconnected, device automatically caches the data, and communication recovery, automatically upload data, the cached data can up to 1000. 4Built-in buzzer to realize ultra-high and low temperature alarm, and real-time push of temperature and humidity exceeding the limit. 5The device uses a lowpower LCD screen, which can check the temperature and humidity in real time on site.Item Type: Temperature Humidity RecorderMaterial: ABSWeight: Approx. 196g / 6.9ozEquipment Power Supply: DC5VMeasurement Accuracy:Temperature: 0.5 (25)Humidity: 3%RH (5-95%RH, 25)Battery Attributes: 18650 Lithium Battery 800MAH (Built-In)Uses: The product is mainly used in places that require online temperature and humidity monitoring such as flower houses, laboratories, breeding, greenhouses, offices, warehouses, etc.Product Size: Approx. 79x53x27mm / 3.1x2.1x1.1inInstallation:The device can be hung wherever it can be hung, and the device can be hung with a lanyard. (Please refer to the manual for details) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Charging Cable1 x Temperature Humidity Meter1 x Hanging Rope1 x ManualNote1. Please allow 01 inch 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.3.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.