Gas alarm unit, especially for use in the cabin of an HGV carrying a dangerous gas that could harm the driver, comprises a housing with a component circuit board and plug for connection to a cigarette lighter socket

摘要

Gas alarm unit has a housing (10) for which holds a circuit board (12) on which a gas sensor, microprocessor and alarm transmitter are mounted. The housing has an integral plug part (14) for insertion in a motor vehicle cigarette lighter socket.