A: These gauges feature stepper motors and must be powered on to automatically return to the zero position. This is completely normal behavior and does not indicate a defect.

A: No, the package does not include an oxygen sensor. It is compatible with narrow-band oxygen sensors that have an output voltage range of 0~1 V.

A: The EGT sensor provided features a standard thread size of 1/8 NPT.

A: The sensors supplied for Water Temperature, Oil Temperature, and Oil Pressure all use a 1/8 ZG thread specification.

A: Yes, each individual gauge package includes a dedicated English Manual and the necessary wiring for standard installation.