Autowatch AASDS Side Detection System (External Speaker not Included) Prevent Accidents with Pedestrians & Cyclists The SDS Pedestrian / Cyclist Detection system is a modern detection system using ultrasonic technology specifically designed for commercial vans, HGV's and lorries. When the vehicle slows to around 10 Mph, and the left indicator is turned on, the system will flash the internal display to show turn "On", then just monitors that area until a cyclist or object is detected or until the vehicle's speed increases over 10 Mph or the indicator is turned off. If a cyclist is detected, it then warns the driver visually through our traffic light display and then finally with an audible tone as the distance between the cyclist and the side of the vehicle decreases to less than 400mm. The system is designed to offer the driver an awareness of any pedestrians or objects whilst turning left and that the driver should still use caution when performing the manoeuver. The SDS system consists of 4 Ultrasonic sensor eyes (all 4 to be mounted on the nearside of the vehicle from the nearside bumper / step and wheel arch), a display with internal piezo tone buzzer (to be mounted on the A-Pillar, at side mirror height, facing towards the driver's position) and a Control Module (to be mounted behind the dash) All detection zones are approximate due to the shape of the object, installation position of the sensors and reflected signal may mislead the detecting sensor. In order to get a more accurate detection value, please try to test varied objects in different angles when installing. Installation To give best coverage to detect pedestrians and cyclists, the forward sensor is mounted into the nearside wheel arch section at a height no closer than 450mm from the ground. The forward centre sensor to be mounted on the nearside forward corner of the body. The rear sensor to be mounted above or just in front of the rear wheels and the forward rear sensor to be mounted between the rear and forward sensors.