Bosch ISN-SM-80 motion detector

ISN-SM Seismic Detectors - 24-hour surveillance of vault walls and doors, safes, night safes, and automatic teller machines
- Sensitivity settings using DIP switches
- SENSTEC sensor and signal processing system based on microcontrollers
- Low-profile design

Seismic detector with 5m operating radius on concrete and 80m monitoring area.

When cutting and drilling through materials such as concrete, steel, or synthetic reinforcements, deviations from the structures' normal vibration pattern ensue. The SENSTEC sensor converts vibration deviations into electrical signals. The digital processing in the seismic detector analyzes the signals and compares them to a frequency range typical of tools used to break into safes, night safes etc. If the signals fall within this frequency range, the seismic detector transmits an alarm via a relay contact.