EG-4.5-II Geophone 4.5Hz Vertical with Split Spring Clips Connector
Single geophone 4.5Hz vertical in waterproof land case with spike 75mm, with 1m leader cable,with one D-Loop, terminated with Split Spring clips connector.
Natural Frequency: 4.5Hz
Coil Resistance: 375Ω
Sensitivity: 28.8 V/m/s