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Model GK-403 Vibrating Wire Readout | Discontinued

  • Close-up of Model GK-403 Vibrating Wire Readout Box control panel (this product has been discontinued).
  • Model GK-403 Vibrating Wire Readout Box (this product has been discontinued).

The Model GK-403 is designed for use with all GEOKON vibrating wire sensors in all kinds of weather conditions and comes with a battery charger, patch cord, RS-232 interface cable, communications software and manual. Storage of the readings is a simple one-button operation and each stored reading is identified by a reference number, ranging from 1 to 256, plus time, date and temperature. All readings can be transmitted to a host computer and imported into spreadsheet and database applications. Terminal boxes, allowing instrument cables to be grouped and read at one convenient location, are also available.

The Model GK-403 has been replaced by the Model GK-405 Vibrating Wire Readout.


Excitation Range
400 Hz to 6000 Hz, 5 Volt Square Wave
0.1 µs
Timebase Accuracy
±50 ppm
Temperature Range
−10°C to +50°C
L × W × H
191 × 133 × 235 mm

Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.