Price: £44.99 (plus £4.99 p&p) Sensors/alert: Four/audible

A decent all-rounder, the Veba counted down to the car from 1.5m, as we expected, and the bollard from a metre. More impressively, it alerted us to the hose constantly from 80cm and went continuous at 20cm. The instructions have some odd translations, but the diagrams are clear. Simple and good value – the second cheapest here.