Product Description 
 ZJ-1 self-rescuer negative pressure hermetic detector (hereinafter called detector) is used to check the air tightness of the device of the self-rescuer, by host and dryers, according to GB/T8160-1987 in 1.4.2.2 negative pressure method provisions, reliable, accurate detection and intuitive, easy installation. The detector is mainly used for self-help device manufacturers and users of products factory and daily air tightness check. The inspection the airtightness apparatus of the self-rescuer vacuum principle, micro-pumps, direct evacuation of its internal self-set to generate a negative pressure work. 
 ZJ-1 self-help technical parameters of the negative pressure hermetic detector 
 Measuring range: -0.1 ~ 0Mpa 
 Accuracy class: 2.5 
 Power: 90W 
 Power supply voltage: 220V/50Hz 
 Dimensions: 320 * 200 * 300