... LPG, npg, all combustible gas. LX-211/211LGAS DETECTORGas leaking detector use for detect LPG, npg, all combustible gas. When gas ... detector sensed the gas, it is ringing with LED flashTechnical Parameters: ... : ≥85dbProduct Size: 10.7×10.7×3.7cm. Gas Leaking Detector