Meeting the installation thread 1/8NPT, Output signal 10-180Ω, 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 open, the alarm light turn off. When oil pressure value is 0.8 ± 0.2bars, the alarm switch close, the alarm light 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.