HME's CE417 is a versatile dual output external vehicle detector that signals all of your equipment – cabled or wireless timers – regardless of manufacturer. The CE417 senses vehicles as they pass over an underground loop and then transmits presence or pulse signals to multiple devices such as timers, message repeaters, base stations, and more. HME also offers ultrasonic vehicle detectors. The DU3 is installed above ground, making it ideal for existing sites. All HME vehicle detectors are impact and weather-resistant to withstand the rigors of the drive-thru.