Mechanical gauges do not require 12V power to operate. They make direct physical contact with the item they are reading. They do this through tubing or lines, which eliminates the need for electric signals.
Ideal for vehicles that operate on voltages other than 12V, with no voltage at all (magneto applications) or operate on a battery with no generator.
This range of Stack gauges have been specifically designed for vehicles with no or low powered electrical systems.
Stack Instruments Series, Gauge, Water Temp, Mechanical, 52mm, Black, 120-240 Degrees F, 1/2" Npt (M)
Autometer Stack 52mm 120-240 Deg F 1/2in Npt (M) Mechanical Water Temp Gauge - Black
GAUGE, WATER TEMP, MECHANICAL, 52MM, BLACK, 120-240?F, 1/2" NPT (M)
Bronze bourdon tube 270 Degrees Sweep movement
2-1/16" WTR TMP, 120- 240?F, MECH, STACK
Engine Coolant Temperature Gauge
Ga WTmp Mech Bk 240F
STACK INSTRUMENTS