1.100% new and high-quality products. 2.Made of high-quality materials, and practical. 3.Small size, simple application, and convenient installation. 4.Efficient and stable performance, long working life. 5.Low power consumption, fast response, and strong anti-interference ability. Measurement range: 400 ppm -2000 ppm Accuracy: (50 ppm+5% of reading) Current consumption: 17mA (measurement rate=5 seconds)/0.5mA (measurement rate=5 minutes) I2C digital interface address 0x62 Colour:Black Material:ABS Package Contents: 1 x Gas Sensor Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.