Based on this product's specifications, here are some alternatives and similar models
Parking reverse sensor BLOW CPW4 (white) 22 mm mounting diameter
Summary description:
Reverse parking sensor BLOW CPW4 in white with a 22 mm mounting diameter. Designed to detect obstacles while reversing, this compact ultrasonic/proximity sensor (model CPW4) mounts into vehicle bumpers and provides audible or system-compatible signals to assist parking maneuvers. Suitable for retrofitting or OEM replacement where a 22 mm sensor is required.