Authorized Seismograph Calibration & Repair 

We maintain a complete seismic and acoustic calibration system.  The typical time required for testing and calibration is only 7 to 10 days.  Our calibration service has the following benefits:

• We strive for a factory calibration accuracy of 1% to 2% . ISEE seismograph performance specifications only require 5% accuracy.
• A calibration certification will be provided showing the response at various frequencies.
• Data in memory are downloaded and carefully reviewed.
• Cables, connectors and components are thoroughly checked and cleaned.
• The internal battery(s) are charged and tested.
• Instrument setup parameters are reviewed.
• Required firmware upgrades are installed.
• We have the ability to perform all repairs at a reasonable cost.

When sending in units for repair please include just the instrument, tri-axial ground motion package, microphone and charger (so we can check the voltage).  We will not be responsible for the return of any other peripheral items, downloading cable, spikes, etc.

CONTACT: [email protected]/ 8888831333