This gas alarm sensor helps monitor natural gas safety. It is a reliable safety device designed for use in motor homes, marine environments, and vehicles. It can detect leaks of propane, butane, LPG, natural gas, and other common flammable gases. The unit is easy to use and simple to install.Features: 1. Unique alarm sensor design with high reliability. Easy to install and operate. 2. Constructed from high-quality materials for safe, stable, and long-term performance. 3. Dual indicator lights: red light indicates alarm condition, yellow light indicates fault. 4. Includes built-in output switch terminal pair for integration with external alarm systems. 5. Suitable for use in vehicles and marine applications such as motor homes, boats, and yachts. Specifications: Condition: Color: White Material: Metal + Plastic Operating Voltage: 12V DC Standby Current: 90mA Alarm Current: 100mA Warm-up (Stabilization) Time: 180s Alarm Gas Level: 10 5% LEL, 0.5 0.25% VOL Alarm Indicator: Red LED, flashing Alarm Sound Level: 85dB/m Failure Indicator: Yellow LED, continuously lit with audible tone Operating Temperature: -10C to +50C Environment Humidity: 95% RH Installation: Wall-mounted Size: 11.5 x 7 x 5cm / 4.53 x 2.76 x 1.97in Weight: 151g Note: Please allow 01 inch error due to manual measurement. Thank you for your understanding. Package Included: 1 x Alarm Sensor