A-1 OAT
$299.00
OAT Instrument with Ice Zone Warning Light. Kit includes: Unit, 1 ea 6′ Cable and 1 OAT Probe.

Stable Digital Fuel Level for Single Tanks
- Two 90° graphical arcs for quick reference of the fuel levels.
Easy To Install & Versatile
- The A-1 OAT fits into one of your existing 2 1/4″ holes.
- Switch easily between Left, Right or Total Fuel
Accurate, Dependable & Easy To Use
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
- Designed and built in the USA.
A-1 OAT Overview

OAT or Carb Temp
Electronics International’s A-1 instrument provides pilots with the precision and stability needed in order to accurately monitor Outside Air Temperature or Carburetor Temperature while in-flight.
Ice Zone Warning
Not only will Electronics International’s A-1 display Outside Air Temp with a stable, one-degree (Fahrenheit) resolution, it also comes complete with an “Ice Zone” light that alerts the pilot when the Outside Air Temperature could possibly contribute to ice forming in the aircraft carburetor.
Retail Prices
Package includes:
- A-1 OAT Instrument
- P-128 OAT Probe
- XP-6′ Precision Thermocouple Cable
- Wire Harness
- Operating & Installation Instructions
Description | Retail Price |
A-1 OAT | $299 |

Specifications
Dimensions
2.5” x 2.5” x 3.65” Deep, 2 1/4” Flush Mount
Weight
7 oz. (Unit), 1.6 oz for a probe & 6′ Cable
Power Requirements
7.5 to Volts, 1/10 Amp
Ice Zone Warning
Light is lit when displayed temperature is between 10’F and 39’F.
Display
Viewable in direct sunlight, with dimmable 12 and 24 volt backlight control lines.
Intensity Control
Seperate inensity control lines allow you to independently control Ice Warning Zone and Backlight intensity.
Probes
Type K Thermocouple, Ungrounded
