| Technical Specifications 1. Gas Fuel Level Gauge (Pressure Gauge) It is a pressure gauge which not only can show the gas pressure about the gas-cylinder and the high-pressure pipe, but also can transform the pressure into the electric-signal to the switch on the front panel, so that remained gas displayed. Dial diameter: 50 mm (other size made to order) Full span: 400 bar / 6000 PSI, dual scale Accuracy: 2.5%FS Connector: Brass, below or back, G1/4（BSP, PF）M14×1.5 (DIN)ZG1/4（PT）NPT1/4 Bourdon tube sensing element: bronze Case material: SUS 304 Lens material: Polycarbonate Wiring: white lead for output signal, red lead for 12±2 VDC supply, black lead for ground Environmental: -40 to 70 deg. C, RH within 80% 2. Sensor Electric Circuit The electric circuit of our product is HOLL magnetic induction
circuit. It transforms the pressure into the voltage signal. They
all have the excellence of high precision, reliability and durability. Voltage of the supply: DC12±2V Way of wiring: three wire of red, black, yellow. Red one is the
power wire, black one is the iron-connection wire, yellow one is
the voltage-signal output wire. | 
