Usage Tips:The portable 3-in-1 Combustible gas detector can monitor the current Combustible gas concentration, temperature and humidity in the air in real time. Equipped with high-precision sensors, the detectable Combustible gas concentration range is 0~1500PPM, the temperature range is 32~122℉(±2.7℉)/0~50℃(±1.5℃), and the humidity range is 20~80%RH (±5 %RH). 0~1499ppm (green area flashing = safe), 1500ppm ~(red area flashing = danger). By default, the Combustible gas alarm sound an alarm when it reaches 1500PPM. Built-in 1000mAh lithium battery, power supply. Support for QC2.0, PD3.0, AFC, USB C UFP (BC1.2 DCP ) and other common fast charging protocols 10~65W charging Equipped with a special outdoor lanyard, it is easy to carry, suitable for outdoor activities such as travel, camping, picnic, and adventure. There is also a magnetic feature on the back of the Combustible gas monitor, allowing it to be attached to metal areas such as appliances or cars. size: about 7.6 x 7.6 x 3cm Material: ABS colour: As Shown Package Contents: 1 x Detector 1 x English instructions 1 x lanyard 1 x data cable 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.