GS-1 Low Frequency Seismometer The GS-1 is a high sensitivity, self-generating velocity detector with extremely low natural frequencies. It is an excellent choice for detecting seismic activity for structural analysis, gelogic hazards, vibration isolation, etc. GS-1 seismometers are available in 1.0 and 2.0 Hz natural frequencies, and vertical or horizontal oriented models. Sensitivities range from 3.0 to 15.0 V/in/sec depending on coil configurations. Optional weather resistant cover (w/level bubble), calibration coil and adjustable leg bases are available. A vernier spring adjustment is included.

GS-1 Specifications
Natural Frequency:		1.0 Hz ± 10%
Orientation Angle:		Vertical ± 7.5° Horizontal ± 0.5%
DC Resistance:		450 ohms ± 5% 4550 ohms ± 5% 17,400 ohms ± 5%
Sensitivity (V/in/s):		3.0 V/in/sec ± 10% 7.0 V/in/sec ± 10% 15.0 V/in/sec ± 10%
Open Circuit Damping:		.54 ± 20%
Moving Mass:		700 grams ± 5%
Coil Excursion:		> .25 in. P-P
Operating Temperature:		-40° to 100° C
Dimensions (Basic Unit):		Height: 6.45 in. Diameter: 3.0 in. Weight: 69 oz.
Shock:		50 G
Notes:
1. Specification temperature is 25° C. 2. Two Hz model also available. Consult the factory for ordering information.

Specifications are subject to change without notice.