Multi-Gas Detector for Home, 4 in 1 CO H2S O2 LEL, Accurate Measurement, 1800 mAh Smoke Detector, Vibration and Light Alarm, Backlit Display, Detector

1. [High Sensitivity] Equipped with a highly sensitive sensor, this gas monitor ensures accurate measurement with excellent repeatability and a short response time. 2. [3 Alarm Modes] The gas detector features audible, visual, and vibrating alarms upon gas detection, enabling rapid and effective notification. High and low concentration alarm values ​​can be set. 3. [Multiple Charging Options] This gas tester is rechargeable and can be charged via USB from a computer, car, power bank, and other convenient methods. 4. [Backlit Display] The gas monitor features a high-resolution backlit display that provides clear readings day and night, ensuring visibility even in bright sunlight or low-light conditions. 5. [Wide Range of Applications] This versatile gas detector can be used in various fields, including marine, chemical, agricultural, laboratory, mountaineering, and pharmaceutical industries. Specifications: Item Type: Gas Monitor Material: ABS Model: ST8904 Battery: 3.7V 1800mAh Lithium Battery (Built-in) Basic Parameters: CO: 0-999 ppm H2S: 0-500 ppm O2: 0.0-30.0% VOL LEL: 0-100% LEL How to Use: Turn on the device to use directly. Package List: 1 x Gas Monitor 4 x Accessories 1 x USB Cable 1 x User Manual 1 x Storage Bag