LPG gas detector, with replaceable probe module, recessed installation. Specifications Ammonia detector no Butane detector Yes Natural gas detector no Carbon dioxide detector no Carbon Monoxide Detector no Methane detector no Anesthetic / narcotic gas detector no Propane Detector (LPG) Yes Irritant gas detector (Formaldehyde, Phosgene, etc.) no Other gas detector no Asphyxiating gas no Explosive gas Yes Flammable gas Yes Toxic gas Yes Mounting method Wall mounting Type of alarm / signaling / detection Optical / Acoustic Color White Compatible with Apple HomeKit no Compatible with Google Assistant no Compatible with Amazon Alexa no IFTTT support available no Length 69mm Diameter 0 mm Height / Depth 45 mm