TPL1500E-JV car parking sensor made up of microcomputer,Rearview mirror model LED index revolving monitor, four ultrasonic sensors.The design inspiration of LED monitor stem from car Instrument panel .The LED monitor use the way of index to indicate distance ondition.There are 4 yellow lights under the display space one to one correspondence 4 sensor indicating the nearest distance. monitor has double digit show DVAL and a built-in buzzer which alert is divided 5 segment to indicate gradually. Features:◊Digital LED showing obstacle distance. ◊Auto-reverse detector. ◊Four ultrasonic sensors, accurately detecting. ◊Install on bumper is anoriginal fitting. ◊Anti-false alarm patent. ◊Heavy rain proof design. Place of Origin: JIANGXIChina Brand Name: TONPHINor your own logo Model Number: TPL1500E-JV Samples for testing: Available and welcome Certificate: CE,RoHS,FCC Highlight: Hottest Selling,Popular Our Advantage: 10 Years Car Reverse detector(ultrasonic sensors) Factory-Expertise Type: Rearview mirror parking sensor system Others: With Switch Control the System TechnicalParameters: Voltage:9 15V Temperature:-40 +80°C Input:<4W Beepvolume:70 90dB Range(Rear):0.3 2.2m Distance and clew relation tableSpace to the objectionVoice of the alarmVoice Play(Only TPL1500E-JV)220cm 180cmBi------- Bi------- Bi------- Bi-------Voice Play "2m" at 200cm170cm 140cmBi------ Bi------ Bi------ Bi------Voice Play "1.5m" at 150cm130cm 100cmBi-----Bi----- Bi---- Bi-----Voice Play "1.2m","1m" at 120cm,100Cm90cm 60cmBi---- Bi---- Bi---- Bi----50cm 30cmBi--- Bi--- Bi--- Bi---Voice Play "0.5m" at 50cminside 30cmBi--------------Voice Play "stop" inside 30cm