Eddie CJYB4/25 Methane Oxygen Dual-Parameter Alarm Instrument Product Introduction
The CJYB4/25 Methane Oxygen Dual-Parameter Alarm Instrument is a new generation dual-parameter intelligent device. It continuously monitors methane and oxygen concentrations in flammable, explosive, and combustible gas mixture environments. It features audible and visual alarms, clock and voltage display, low voltage alarm, automatic zeroing, calibration, and ease of use.
CJYB4/25 Methane Oxygen Dual-Parameter Alarm Instrument Technical Parameters
Item Technical Parameters
Measurement Range 0～4% CH4 0～25% O2
Basic Error ≤±10% ≤±3%
Sensor Life >12 months >24 months (imported electrochemical)
Response Time <20s
Display Method 4-digit LED
Alarm Mode Intermittent audible and visual alarm, continuously adjustable alarm point
Alarm Point Continuously adjustable (factory set at 1% CH4, 18% O2)
Sound Level Intensity ≥80dB
Protection Rating IP54
Battery Pack Ni-Mh 1800mAh×3
Operating Time Continuous >15h
Explosion-Proof Type Exibd I
Dimensions 116×56×25mm
Weight 0.2kg
Matching Equipment Single unit, 10-unit combination charger 

Zhengzhou Eddie produces and supplies coal drill cuttings desorption instruments, deep hole sampling devices, pressure measuring instruments, geological exploration desorption instruments, borehole flow meters, mine gas extraction and outburst prevention equipment, true density measuring instruments for coal, gas content measuring instruments, automatic initial gas emission speed measuring instruments, diffusion speed measuring instruments, coal extraction pipeline gas parameter instruments.