Propane leak detector fixed propane gas alarm is composed of two part-type gas alarm controller, part of the propane gas alarm detector and the controller using three-core shielded cable or RRVV of three-core cable connection detector and controller has terminals. Type propane gas alarm with a wall-mounted cabinet design, the panel displays the state directly, easy to install, easy to operate. Industrial explosion-proof device detectors, gas sensors using imported components, high sensitivity, wide detection range. Electronic circuits using advanced microcomputer technology, all-digital signal processing, the operation is simple, intuitive; sensor or transmission line failure occurs automatically detect and fault alarm, concentration alarm state can be stored automatically, using the main, prepared dual-supply operation, guaranteed to work continuity. Machine operating status is stable and reliable, low power consumption. Propane gas alarm of fixed and portable propane gas alarm. Propane is heavier than air, easy to danger of suffocation caused by lack of oxygen in the case of leakage. Shandong Jinan Cheng Instrument Co., Ltd. specializing in the production: fixed, portable propane alarm, hand-held propane leak alarm, propane leak alarm, propane detectors, propane leak detector, propane leak detector, propane concentration alarm propane detectors, propane gas alarm. [Liu (0531-58669819 15269173085)] propane gas alarm the RBK gas alarm controller: the technical parameters certification Ministry of Public Security Fire Electronic Product Conformity Assessment Center Application Standard: GB16808-2008 Electric power supply: 195 to 235VAC/50 to 60Hz control output : Relay AC220V/5A (2 passive normally open normally closed) Terminals: for wire cross-sectional area of ??0.5-2.5mm2 Wiring way: two-wire 2 * 2.5mm2 twisted pair structure Installation: wall mounted disc or rackmount Weight: ≤ 3.5kg Dimensions: 302mm (L) x 240mm (W) x 82mm (H) Environment Operating Temperature: -20 ° C to 60 ° C Operating Humidity: ≤ 95% RH (non-condensing) pressure range: 86 ~ 106kPa transmission distance: ≤ 800m display alarm Display unit: (flammable gases)% LEL (toxic and harmful gases) in ppm Alarm mode: sound and light alarm Alarm volume: ≥ 75dB propane gas alarm when the gas concentration reaches or exceeds alarm controller to set the alarm, the alarm an alarm signal, and can start the solenoid valve, exhaust fan endures associated equipment, automatically eliminate hidden dangers. The company follows the principle of customer first, and the spirit of continuous innovation, focusing on gas leak detector, security alarm appliance application and development to constantly improve compliance with the needs of enterprise and industry, provide users with specialized, tailor-made solutions, promote the process of security and industrial development in various industries.