GISCO G-ST-01 Piezoelectric Seismic Trigger Switch

G-ST-01, G-ST-02 PIEZOELECTRIC TRIGGER SWITCH

Next Generation Design
Rugged and Reliable
Machined Aluminium Housing
Compatible With Nearly All Seismographs Including ABEM,
Bison Instruments, DMT, and Geometrics
Our Best Selling Product, Made By GISCO In The USA
Sensitive To Shock On One Axis Only
Consistent, repeatable timing and output pulse length
Completely Sealed and Waterproof
Easily Withstands Shocks of 100g or more

"Two years ago I was having many problems with hammer switches from other manufacturers, which sometimes lasted no more than 10 blows before they broke down. These switches were twice as expensive as Gisco's. I sent an e-mail to Gisco and asked for their hammer switches, as I desperately needed an alternative. ...(they) provided me with the best hammer switch I have ever used. We have 3 more of these switches now, but the first unit we bought has been constantly working for 2 years and has not missed a single blow yet!!!. I recommend these switches to anybody that does seismic work. They are extremely reliable."

Jose R. Arce, Manager
Jose Arce Geofisicos S.R.L.
Lima-Peru

Price $130 - (US dollars, shipping and insurance are extra)

Specifications:
OUTPUT:Contact closure (open collector NPN), 5ms pulse width, 20 volts Max., 100ma Max., Protected against over current, over voltage, and reverse polarity
SIZE: 1 inch diameter (25 mm), 3.5 inches long (88 mm) including cable strain reliever
CABLE: 6.5 foot (2 meters) length
CONNECTOR ST-01: Black plastic 8 pins... (Bison Instrumennts),
ST-02: Metal 3 pin (Geometrics) ..other connectors and cable lengths available - call GISCO)
SHIPPING WEIGHT: 1 pound