Mine supply priced multi-parameter gas detector detector

 Features: 1 Brightness four high-definition digital display; 2 with a high degree of protection for harsh environments; 3 alarm indication in many forms: digital, sound and light, vibration, light bar; 4 alarm point can be adjusted via buttons; 5 You can choose to configure Combined charging rack; 6 built-in cash-chip microcomputer; 7 models with a variety of dual gas combinations; 8 Optional use of metal destroyed or leather protection; 9 can be selected for low temperature instruments (options) ; 10 sensors facilitate easy replacement; 11 time display and setting function; 12 battery voltage display; 13 auto-zero and calibration function; Specifications: Ordering CJT4 / 1000 combination measuring gas CH4, CO measurement principle of catalytic combustion sensor ( CH4), electrochemical sensor (CO) measurement range 0 ~ 4.00% CH4 0 ~ 1000ppm CO measurement accuracy CH4 0 ~ 1.00% CH4 ± 0.1% CH4 1.00 ~ 3.00% CH4 ± true value 10% 3.00 ~ 4.00% CH4 ± 0.3% CH4 CO 0 ~ 100ppm ± 5ppm 100 ~ 1000ppm ± 5 percent true value instrument factory alarm set point CH4: 1.00% CO: 24ppm Resolution CH4: 0.01% CO: 1ppm time display can be set to 24 hours-time multi-grade sound and light alarm multi-mode vibration alarm sound and light alarm sound level 80dB Accessibility alarm vibrating alert, battery voltage display, automatic zero calibration display and audible alarm highlighted the big screen digital display Charging continuous working time is more than 15:00 of protection IP54 Power 3.7V rechargeable lithium manganese oxide Temperature Range Temperature 0 ~ 40 ℃, humidity 98% humidity apply to very wet conditions Dimensions / Weight 106 (L) × 56 (W) × 28 (H) mm / 200g proof type ibdI (150 ℃) anti-shock static ABS housing standard instrument host, charger, holster, calibration cover, manual