Feature:1. Testing and Alarm: This multifunctional detector can simultaneously measure temperature and humidity, efficient and practical, supports buzzer and voice alarm modes.2. Working Modes: Normal working time is about 1011 hours. In energy saving mode, the indicator light works, and the product can be continuously tested for about 3045 days.3. Screen and Sensor: The temperature humidity gauge adopts digital display LCD color screen, which is clear and intuitive, and high accuracy sensor ensures reliable measurement.4. Humanized Design: The detector is lightweight and compact, convenient to carry and store, with back bracket and hanging rope for easy placement, which has strong practicality.5. Applicable Places: This temperature and humidity meter can be used for home rooms, outdoor camping tents, fireplaces, in cars, laboratories, factories, and business places, etc.Specification:Item Type: Temperature Humidity MeterApplication Technology: Air Natural FlowModel: VT-CO02Display Mode: LCD Color Screen Digital DisplaySensor Type: Electrochemical Sensor, Temperature and Humidity SensorSize: Approx. 84 x 55 x 19.5mm / 3.3 x 2.2 x 0.8inOperating Voltage: 5VBattery: 3.7V 1000mAh Polymer Lithium Battery (Built in)Charging Time: About 3-4hNormal Working Time: Screen Light, About 10-11 hoursLow Power Mode Working Time: Screen Off, Indicator Light On, Continuous Working about 30-40 Days.Package List:1 x Temperature Humidity Meter1 x USB Cable1 x Hanging Rope1 x User Manual