Faria Beede Instruments Measuring & Layout Tools
A pressure gauge operates by sending a low amperage current through the gauges's meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure, temperature, etc...As the sender's resistance varies, the amount of current allowed to flow through it to ground changes and the meter deflects, showing the change in pressure.Features
- 80 PSI
- Color - White
- Hole size - 2.0625 in.
- Size - 2 in.
- Anti-scratch glass lens
- Plastic Cases for corrosion resistance and long life
- 12 VDC negative ground
- Can be adapted for 24 VDC systems
- Available in standard or Metric values
Electronic tachometers work by counting pulses generated by the ingition system, alternator, tach signal generator or magnetic pickup sender. The tach is hooked up to +12VDC, Ground and one of the signal sources listed above. By selecting the right tach and setting the switch on the back to the correct postion you let the tachometer know how many pulses are sent per each engine revolution.Features
- 4,000 RPM (Diesel - Magnetic Pick-up)
- Color - Black
- Material - Stainlesss Steel
- Size - 4 in.
- Color - Black
- Wide range of scales
- Multiple signal sources
- Rugged, Reliable construction
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