Parking reverse sensor BLOW CPW4 (white) 22 mm mounting diameter

The BLOW CPW4 parking reverse sensor (white) with a 22 mm mounting diameter is a compact ultrasonic proximity sensor designed for detecting obstacles behind a vehicle during reversing maneuvers. Intended for installation in bumpers, the CPW4 provides distance-related signals that can be interpreted by an aftermarket parking system or integrated into an existing vehicle system. Its small, 22 mm mounting size makes it suitable for tight bumper spaces and for replacing sensors that require the same hole diameter.

Advantages

The sensor’s compact 22 mm housing allows discreet installation with minimal impact on bumper appearance while delivering reliable ultrasonic detection of obstacles. The white finish is matched to light-coloured bumpers for lower visual contrast. Designed for compatibility with common parking systems, the CPW4 offers straightforward integration and steady performance across typical urban parking distances.

Suitable for

• Aftermarket parking aid installation in passenger cars and light commercial vehicles
• Replacement of existing 22 mm bumper sensors
• Retrofit projects where a compact, low-profile sensor is required

Key specifications

• Sensor type: ultrasonic proximity sensor for reversing assistance
• Mounting diameter: 22 mm
• Colour: white
• Installation location: vehicle rear bumper (flush or slightly recessed mounting)
• Output: signal compatible with standard parking control units or audible parking buzzers (integration dependent)

How to use

Drill or use an existing 22 mm hole in the bumper at the recommended mounting height and position to ensure unobstructed detection. Insert the sensor into the bumper hole and secure it according to the vehicle-specific mounting method (snap-fit or retaining ring). Connect the sensor’s wiring to the parking control unit or vehicle wiring harness following the system manufacturer’s wiring diagram, ensuring correct polarity and secure electrical connections. After installation, perform functional tests by reversing toward obstacles and confirming that the parking system registers sensor input and produces appropriate audible or system-level warnings.

Usage recommendations

For reliable detection, mount the sensor at manufacturer-recommended heights and avoid locations covered by heavy dirt, mud, or protective films. Regularly inspect and clean the sensor face to maintain correct ultrasonic performance. Verify electrical connections and compatibility with the vehicle’s parking control unit before final assembly.