Features 1、High precise, durable, long life time. 2、Small size, low power consumption. 3、Expansion type for incubator, very practical. 4、Very sensitive, provide good usage experience. 5、Professional manufacturing, stable performance and high reliability. Specification Condition: 100% brand new Item type: Infrared Carbon Dioxide Sensor Material: aluminium alloy Color: As picture shown Weight: Approx. 6g Uses: CO2 sensor, the CO2 module is widely used in high-concentration environments such as carbon dioxide incubators and carbon dioxide analyzers Measuring range: 400-2000ppm Measurement accuracy: ±40ppm±3% of reading Working humidity: 0-85%RH non-condensing Power supply: 4.5-5.25VDC Power consumption: 300mA maximum value; <18mA average Serial communication: UART, for Modbus protocol PWM output: 0-100% duty cycle is 0-2000ppm Package List 1 x Infrared Carbon Dioxide Sensor