Parking Sensor Best Supplier Top quality,Competitive price 12 Months Warranty Various ... )Operating range:DC9V-18V;3)Rated current:20mA-200mA;4)Ultrasonic frequnency:40KHZ;5)Working temperature:-30°c to +80°c ... )No display; 2)Step-up Buzzer alarm;3)Buzzer alarm switch:OFF,LO,HI;4)Detective distance from 1.8m to ... *46.5cmPayment methodPaypal,Western Union,MoneyGram,T/T Simple Parking Sensor