Fail-Safe Void Detection Sensor

Rail Ballast, Embankments, Bridge Scour, Landslides, Structural Separation

Instant notifications of integrity loss

No calibration required

>25 year
operational life

Prevented major incidents and saved lives

Precision Engineering

The BIS sensor is manufactured to the highest precision engineering standards to ensure total confidence in the device's operation.

The BIS comprises of an on/off switch that activates when the nose cone becomes disconnected from the sensor body.

Adjustable trigger threshold from 1.5" to 3.5" (38.1mm to 88.9mm)

The BIS housing is constructed of aluminium to ensure low corrosion over the lifetime of the installation.

Output signal can be connected to multiple monitoring systems or directly to signalling systems