These gauges are stepper motors and need to be powered on to return to zero. It is normal that the pointer does not return to zero when powered off.
They are suitable for all 12 volt gasoline vehicles.
These gauges utilize stepper motors and require power to return to zero. It is completely normal for the pointer to stay off-zero when the power is turned off.
No, the package does not contain an oxygen sensor. It is compatible with narrow-band oxygen sensors that have an output voltage range of 0~1 V.
The EGT sensor included with the Exhaust Temperature Gauge has a thread size of 1/8 NPT.
Both the Water Temperature Sensor and the Oil Temperature Sensor use a thread size specification of 1/8 ZG.
We offer two standard configurations: the PSI version (measuring 0~100 PSI) and the Bar version (measuring 0~7 Bar).