Racepak These laser ride height sensors are used to monitor the distance to an object, relative to the sensor, when contact cannot be made with the object. This makes them ideal for use in setting up the suspension by monitoring chassis ride height in relation to the moving ground plane. These sensors are designed for use in measuring distances ranging from 1.00 to 11.80 inches. This V-Net module connects the Laser Ride Height sensor (PN: 810-SN-RHB2) to any V-series recorder.