You still can not find a suitable nitrogen gas alarm and worry about it? You still can not find a suitable nitrogen 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. Applied nitrogen concentration and nitrogen leak detection alarm can be accurately detected with nitrogen content, the use of imported sensors with signal stability, sensitivity, and precision. 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: * whole small size, light weight, waterproof, explosion-proof, shock-proof design * High-precision, high-resolution, fast response * with large capacity rechargeable lithium battery, can work long hours * Digital LCD backlight display, sound and light, vibration alarm function * upper and lower limit alarm value can be set arbitrarily, comes with zero and the target point density calibration function, built-in temperature compensation, easy maintenance * Wide range, the maximum value can be displayed to 50000ppm, 100.00% Vol, 100% LEL * Data recovery function, eliminating the worries caused by misuse * shell is made of special materials and technology, easy to wear, easy to clean, long-term use bright as new * applied to the concentration of nitrogen and nitrogen leak detection alarm, can accurately be nitrogen content detection, the use of imported sensors with signal stability, sensitivity, and high precision technical parameters: Detection of gas: nitrogen in the air detection range: 0 ~ 100% Vol Resolution: 0.01% Vol detection methods: diffusion type, pump-priming can Option Display: LCD LCD backlight display detection accuracy: ≤ ± 3% (FS) Alarm: sound and light alarm, vibration alarm (optional) Response time: less than 10S Recovery time: less than 20S Power supply: DC3.6V battery capacity : 3.6VDC, 1800mA, with charging protection function sensor life: more than two years Environment: Temperature -20 ℃ ~ + 70 ℃; relative humidity ≤95% RH (non-condensing) explosion-proof type: intrinsically safe explosion-proof mark: Exia II CT6 Protection: IP65 Dimensions: 125 × 52 × 30mm (L × W × H) Standard accessories: manual, charger Optional accessories: 0.8m handle a sampling, equipment boxes 1 Weight: 200g 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/