Item Type: Temperature Humidity Logger Material: Plastic + Electron Weight: Approx. 178g/6.3oz Application: Indoor Environment Temperature and Humidity Detector Recorder With Alarm Battery: 1 x 3.6V 14250 Lithium Battery 1000MAH(Not Included) Resolution: 0.1 Accuracy Level: 0.5 Temperature Measurement Range: -30-80 () Temperature Resolution: 0.1 () Temperature Measurement Error: +-0.3 () Temperature Measurement Accuracy: 30-80 () Humidity Resolution: 0.1 (RH) Humidity Measurement Range: 0-100 (RH) Humidity Measurement Accuracy: 0-100 (RH) Humidity Measurement Error: 2 (RH) 1Temperature and humidity logger with high sensitive sensor, high accuracy, convenient to record or store data. 2With alarm function and data storage function, can improve your work efficiency. 3Low power consumption, support long?term using, ?30?80 temperature measurement range, convenient to use. 4Dustproof and waterproof housing, resistance to moisture, durable and sturdy to use. 5Wide application, can be used for food processing, agricultural research, biochemical laboratories, weather detection, etc.1. Please allow 0?2 cm 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.1 x Thermohygrograph2 x Screw 1 x Bracket1 x Disk