This is Hall type CNG Gauge with Sensor for CNG vehicles, to indicate the CNG volume inside the tank. All gauges are properly over-pressured with high durability. Special requirements are acceptable. Signal Load: 12KΩ Supply Volt: 12V Output Volt: 40bar-4V, 70bar-3V, 110bar-2V, 150bar/1V Water Proof: IP65 *Special specifications acceptable.