Designed for use in car parks, the SRF485 is suitable for use whenever a large number of sonar's are required.
This sonar has 3 user programmable Led indicator outputs available.

Power - 8v to 14v, 12v nominal, 10mA
Frequency - 40KHz
Range - 30cm to 500cm
Comunicaion - Standard RS485 Bus, up to 127 SRF485's connected to your controller.
Units - Range reported in uS, cm or inches.

Temperature Compensation -30 to +50 centigrade

https://www.robot-electronics.co.uk/htm/srf485wprtech.htm