clock day of the week at a glance. With 3 icons to indicate the real time concentration level.【CO Concentration Measurement】: Built-in nice-performance CO detection chip, real-time monitoring of CO concentration, to ensure obtained accurate data easily in harsh environments. High sensitivity, superior interference resistance ability, and stable working performance. With ultra-low power consumption, fast computing speed, and accurate data measurement function.【Temperature and Humidity Measurement】: Built-in high-precise temperature and humidity sensors can sensitively detect temperature and humidity changes at the same time, and the detection results are more accurate.【Mobilephone APP Control & Voice Control】: Connect to the cellphone Tuya APP, just a simple configuration to free your hands. Supports voice commands, compatible with Alexa and Google Assistant to inquire the indoor CO concentration, temperature and humidity of your home by voice control, more humanized. 【Strong Heat Dissipation】: Hundreds of ventilation holes reserved on the housing not only accelerate the convection between the air and the machine, thereby realizing effective detection but also provide a fine heat dissipation effect.【Wide Applications】: This carbon monoxide detector is a very practical device that can be widely used in a variety of occasions, such as homes, greenhouses, camping barbecues, factories, automobiles, environmental monitoring, and so on.Specifications:Name: CO Concentration DetectorMaterial: ABSBattery: 3 * AAA battery (included)Display: LCD displayItem size: * * mm / * * inItem weight: g / ouncePackage size: * * mm / * * inPackage weight: g / ouncePacking List:1 * CO Concentration Detector1 * Type-C Cable1 * User Manual1 * Lanyard1 * Screw Accessory Set