The portable 3-in-1 combustible gas detector monitors combustible gas concentration, temperature, and humidity in real time. Equipped with high-precision sensors, it detects combustible gas concentrations from 0 to 1500 ppm, temperature range from 32F to 122F (0C to 50C), and humidity range from 20% to 80% RH. Gas levels from 0 to 1499 ppm are indicated by a flashing green light (safe), while 1500 ppm and above trigger a flashing red light (danger). The alarm activates automatically at 1500 ppm. Features a built-in 1000 mAh lithium battery for long-lasting power. Supports fast charging via QC2.0, PD3.0, USB-C UFP (BC1.2 DCP), and other common protocols with input between 10W and 65W. Includes an outdoor lanyard for easy carrying, ideal for travel, camping, picnics, and outdoor adventures. The back of the device has a magnetic feature, allowing attachment to metal surfaces such as appliances or vehicles. Dimensions: approximately 7.6 x 7.6 x 3 cm Material: ABS Color: As shown Package includes: 1 x Detector 1 x User manual in English 1 x Lanyard 1 x Data cable Content limited to items listed; additional products not included. Note: Lighting effects and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.