GTH500 (B) coal with carbon monoxide sensors sensor professional manufacturers economic 宁恒旺 - to really sincere, service eternal, Wang Heng electrical equipment company holds quality first, the principle of the interests of the second door to greet customers and friends from around the world, and sincerely welcome your call! Contact: Victor 15,563,491,958 phone is turned on, please wait. . . First, the product name: GTH500 (B) coal with carbon monoxide sensors two, carbon monoxide sensor main technical indicators: Measuring range: 0-500ppm; measurement error: 0-100 ppm ≤ ± 4ppm; 100-500 ppm ≤ ± 5% pp?? ; Response time: less than 35s; alarm point: arbitrarily set within the measurable range; Display: three LED local display; Alarm: red LED flashes, the buzzer will sound the alarm sound pressure level ≥80dB; output signal: 200 -1000Hz or 4-20mA; Operating voltage: intrinsically DC9V-24V; Rated current: ≤60mA ;; from the sub-station distance: ≤2km; Ji Ning Hengwang mining service package for you! Product quality assurance your mind! Guarantee after use also want to buy! If you are interested in the product or want more information, such as: price, model, pictures, please call us, negotiate! Mobile: 15563491958 Tel: 0537-2530678 Fax: 0537-2583028 Postcode: 272000 QQ: 2505236685 E-mail: 2505236685@qq.com