Home / Avionics / Instruments & Gauges / Fuel & Water Temp Gauge, Compasses / MicroFlight, Water Temp. 2 Inch, MicroFlight, Water Temp. 2 Inch,$83.55 MicroFlight, Water Temp. 2 Inch, quantity Add to cart SKU: INWT130 Category: Fuel & Water Temp Gauge, Compasses Description Description Includes cylinder head mounted probe (1/8″ NPT). Requires 12 VDC power, must have battery or 12 VDC power supply. See INEL100 low power adaptor 12 VDC in this section or use regulator / rectifier designed for use without battery.