Price: £89 (plus £1.50 p&p) Sensors/alert: Two/audible

The large plastic bracket holds the number plate and the sensors are fitted at either end in a variety of positions depending on the height (a TGI version, for £10 more, can programme out a towbar). While the result for the car was good, it was a pleasant surprise to see the bollard was detected at a metre, and the hose from 80cm.