The GateMate (CP-3) has a low standby, requiring just 90-150 microamps. That’s an 85-90 percent lower current draw than its closest competition, the company says.
The product is a one-piece system, according to the company, containing all its electronics in the sensor probe that gets buried beside the driveway. It has universal voltage — VAC and VDC — and connects directly to any gate operator.
When hidden beside the driveway, it will detect a vehicle and open the automatic gate for a hands-free egress. It allows solar-powered gate operators to work longer on a single charge. 
—From Cartell news release
