Earthquake Alarm, P Wave Earthquake Alarm
P wave earthquake alarm.it can test the distance more than 1200000m
it used for home ,office,market,school ,factory and other place.
P wave is faster than S wave,so it can save times to inform people to go to the safe place
P-wave detection system
Power : 9V
Seismic P-wave detection
Measuring range :200 km range
Dimensions: 16 * 7.8 * 3.5 (mm)
Sensitivity adjustment
With battery
Have USA patent
Weight:230g
Packing : 1pc/box , 50pcs/carton 35*51*31 cm /carton 11kgs/carton
