2.1-inch Display Detector Portable Carbon Monoxide Tester Multifunctional Temperature and Humidity Test Meter Electrochemical Sensor IP65 Waterproof Household Air Quality Meter This portable air quality tester adopts an electrochemical sensor and a high-precise temperature and humidity sensor, with stable performance and high detection accuracy, supporting the detection of carbon monoxide concentration, temperature, and relative humidity in the air. 2.1-inch IPS color display, 240*296 resolution, with ultra-wide viewing angle, so you can see the readings at a glance. 3D porous housing with multi-sided ventilation holes designed for real-time air circulation convection. The sensor and theair are fully contacted, highly sensitive, and accurate in the detection of small particle content. It can be widely used in a variety of occasions. Features: 【Compact and Exquisite】: Compact body design, simple and stylish appearance, lightweight, and easy to carry. 3D porous housing with multi-sided ventilation holes designed for real-time air circulation convection. The sensor and theair are fully contacted, highly sensitive, and accurate in the detection of small particle content. With a folding bracket on the back, it is easy to place on the desktop smoothly after unfolding. 【2.1-inch IPS Display】: 2.1-inch IPS color display, 240*296 resolution, with ultra-wide viewing angle, so you can see the carbon monoxide concentration, temperature, and humidity readings at a glance. With 3 levels of brightness adjustment function. 【Carbon Monoxide Concentration Measurement】: Built-in nice-performance electrochemical carbon monoxide detection chip, real-time detection of carbon monoxide concentration, to ensure obtained accurate data easily in harsh environments. High sensitivity, ultra-low power consumption, fast computing speed, and accurate data. 【Temperature and Humidity Measurement】: Built-in high-precise temperature and humidity sensors can sensitively detect temperature and humidity changes at the same time. Automatic compensation technology, to reduce the impact on the carbon monoxide detection results, so that the detection results are more accurate. 【Buzzer Alarm】: Real-time detection of carbon monoxide content in the environment, when the carbon monoxide concentration is too high, it will promote the sound and light alarm. Data refresh frequency: 2 seconds. 0-50PPM concentration no response, 51-200PPM cycle alarm (5 times alarm in three minutes), >201PPM continuous alarm (continuous drip alarm). 【Lasting Endurance】: Adopting 1000mAh high capacity polymerized lithium battery, with long-lasting endurance. Type-C charging port. 【IP65 Waterproof】: IP65 grade daily waterproof, multiple protections design, no fear of rain, suitable for a variety of complex environments. 【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 detection, and so on. Specifications: Name: Carbon Monoxide Concentration Detector Material: ABS Color: black, white (optional) Battery: 1 * built-in 1000mAh lithium battery (included) Carbon Monoxide concentration: 0-999PPM Working voltage: 3.7V Waterproof: IP65 Data refresh frequency: 2s Working humidity: 0-95%RH Working humidity: 20%-80% Working temperature: -10-+60 degrees Charging interface: Type-C interface Item size: 63.3 * 63.3 * 20mm / 2.49 * 2.49 * 0.79in Package size: 137 * 105 * 26mm / 5.39 * 4.13 * 1.02in Package weight: 90g / 3.17ounce Packing List: 1 * Carbon Monoxide Concentration Detector