Gas leakage sensor Gas leakage detector alarm Gas alarm Name: stand-alone gas leakage detector Model: gl-01 The stand-alone gas leakage detector is an input device designed for natural gas, LPG detection. It can use independently. Upon detection of natural gas and LPG, the gl-01 automatically generates sound & flash alarm. The unit is RF and EMI immunity to interferences produced by radio device. Applications: for indoor use. Gift box.