Noise Sentinel Ground Vibration Monitoring is contracted with calibration services designed to ensure minimal loss of monitoring time. These services include visits to each location by our specialized service team who perform preventative maintenance checks and acoustic calibration, and swap any vibration monitors with fully calibrated units. Monitors due for calibration are then removed and sent for calibration. The replacement of equipment on-site reduces measurement downtime to just a few minutes. A full preventative maintenance report is compiled and stored on the Noise Sentinel platform for reference and to show equipment is within calibration at all times. Depending on the number of locations, site visits may occur up to once every quarter.