This limit switch is to be used as a replacement for the limit switch that was included with the Moyer Marine Temperature/oil pressure warning kit, in case your original limit switch should fail. This is a normally closed switch, it will open above 6 psi oil pressure to silence the alarm buzzer while the engine is running.
NOTE: This oil pressure limit switch should only be used as a replacement for the switch that came with the Moyer Marine warning kit. This limit switch is not an oil pressure sender, and it should not be wired to an oil pressure gauge.
NOTE: Except for warranty exchange, this switch is not returnable.