ASI (Avionics Specialists) ASI-203
Altimeter Test Set
0 to 200 knots Airspeed Range
Analog dial indicator Display Type
-20°C to +70°C (-4°F to +158°F) Operating Temperature Range
28V DC Power Requirements
3-inch (3ATI) standard aviation panel mount Instrument Size

| Attribute | Value |
|---|---|
| Airspeed Range | 0 to 200 knots |
| Display Type | Analog dial indicator |
| Operating Temperature Range | -20°C to +70°C (-4°F to +158°F) |
| Power Requirements | 28V DC |
| Instrument Size | 3-inch (3ATI) standard aviation panel mount |
| Pitot-Static Compatibility | Compatible with standard aircraft pitot-static systems |
| Accuracy | ±2 knots within calibrated range |
| Certification | TSO-C2d compliant |
| Weight | Approximately 0.5 lbs (0.23 kg) |
| Application | Fixed-wing general aviation aircraft airspeed indication |
| Model | ASI-203 |
|---|
The ASI-203 Altimeter Test Set is housed in a rugged drawn-aluminum case, designed to isolate faults and perform routine flight-line maintenance test on both AL101 and AL101A Radio Altimeter Systems. It requires a user supplied 339H-1 ( ) for proper operation.




