You still can not find a suitable sub-wire ammonia gas alarm and worry about it? You still can not find a suitable sub-wire ammonia gas alarm and headache it? Better to Weihai MSC Fire Equipment Co. see it! Help you solve all the troubles. . . . . . The company product range, quality assurance, welcome your purchase. The alarm wall-mounted, each channel corresponds to a detector. By engagement with the detector used by the controller MCU and processes the detector data uploading various data, the final completion of the display data, the control output. Sold to Shandong - Jiangsu - Jiangxi - Hebei - Henan - Zhejiang - Liaoning - Tianjin - Dalian - Xinjiang - Gansu - Sichuan - Guangdong - Guangxi - Anhui - Fujian - Hubei - Hunan - Chongqing - Yunnan - Ningxia - Inner Mongolia - Jilin - Shanghai - Guizhou - Shaanxi - Shanxi Features: ☆ ☆ gas concentrations displayed fault detection and alarm, undervoltage alarm ☆ ☆ LED digital display calibration, calibration standard signal ☆ ☆ receive DC4-20mA features easy operation, high-performance microprocessor ☆ automatically turn on the fan and solenoid valves ☆ anti-radio frequency interference technical parameters, test objects: flammable / toxic gases 2, measuring range: 0-100% LEL; 0-N ppm (different gas detection, range is not the same) 3, the basic error : ≤ ± 5% (full scale) 4, Display: LED display 5, Alarm: sound, light alarm 6, alarm volume: ≥70 decibel 7, alarm settings: Low (20), high (50) 8, Response time: <60S 9, the received signal: DC 4-20mA standard signal 10, the alarm output: two alarm relay output contact capacity: 1A / 250VAC 11, power supply: AC220V, 50HZ 12, Installation: wall-mounted 13 Working environment: Temperature: -10 ℃ -50 ℃ Relative humidity: ≤95% RH 14, atmospheric pressure: 86-108kPa 15, work: continuous work 16 Dimensions: According to large ones may be http: // nxjuqian. cn / http://lyafdz.net/ http://aqjuqian.com/ http://yyhtjq.com/ http://cnjingniu.com/ http://bjq123.com/ http://gzjuqian.com/ ?? http: //scjuqian.com/ http://shjuqian.com/