Meeting the installation thread 1/8NPT, Output signal 10-180, Range 0-1.0MPA can be replaced. Two plugs inside the plug, one is connected to the instrument, the other is to negative. This one is dual function. The housing is a common negative electrode. One to the instrument, the other to alarm. WK is alarm terminal, connect to alarm light G is the signal terminal of parameter display , connect to the instrument display Shell is common negative (ground) Wiring instructions: G:connect to oil pressure meter of the positive WK:connect to the alarm light of the positive Size: 1/8NPT Working principle: Working range: 0-10bars Alarm temperature: 0.8 0.2bars. When oil pressure value is 0-10bars, the alarm switch will open, the alarm light will turn off. When oil pressure value is 0.8 0.2bars, the alarm switch will close, the alarm light will turn on. The actual product may have slight color differences or differences, which does not affect use. Colour:Photo Color Material:Metal Package Contents: 1 x Oil Pressure Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.