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, geologic 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.

Spec Sheet:

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


1. Specification temperature is 25° C.
2. Two Hz model also available.

Consult the factory for ordering information.

GS-1 Seismic Detector Response Curve Output Vs. Frequency @ 450 Ohms

Seismic Detector Response Curve Output Vs. Frequency @ 4550 Ohms

Specifications are subject to change without notice.

For Additional Information, please fill out the form below, and we will be in contact as soon as possible.

Your Name (required)

Your Email (required)

Company Name (required)

Select Your Product Description

Your Message

Verify the characters in the box below: