Feature 1Temperature and humidity recorder, sensitive, the temperature measurement range is -4080. 2Multiple warnings, text messages, applications, buzzer sound and light prompts, timely detection of temperature and humidity. 3Suitable for vaccine storage, food refrigeration, breeding and hatching, greenhouse cultivation, warehouses, etc. 4Support WIFI connection, 24hour realtime monitoring, recording interval is 5 minutes24 hours. 5Builtin battery 18650 lithium battery, support USB charging, simple to install and use.Condition: 100% Brand NewItem Type: Temperature Humidity RecorderMaterial: ABSTemperature Measurement Range: -40-80Temperature Measurement Accuracy: 0.5Humidity Measurement Accuracy: 0.5%RHBattery Attributes: Built-In Battery 18650 Lithium Battery 2000MAH, USB ChargingWeight: Approx. 510g / 18ozSize: Approx. 110x70mm / 4.3x2.8in .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 Temperature Humidity Recorder1 x USB Cable1 x Manual2 x ScrewNote1. Please allow 0‑1 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.