Asenware AW-D133 Waterproof Gas Detector

The AW-D133 is a gas detector for monitoring LPG leaks at locations exposed to moisture and water splashes, with its IP65-rated protective enclosure. It is powered by 18~28 VDC, measures in the 0-50% LEL range; under normal operation it draws ≤50 mA, and ≤80 mA during alarm. The device is connected not to the fire panel's detection cycle, but to the gas alarm system via RS485, 4-20 mA, and relay outputs; this allows both central monitoring and local control such as valve closure or fan activation. Since it lacks explosive atmosphere (exproof) certification, it should not be used in spaces with Zone classification; it is preferred for normal environments such as boiler rooms, kitchens, and warehouses containing LPG. Installation is surface-mounted; since LPG is heavier than air, the detector should be positioned at a level close to the floor.