O.A.T. Temperature Probe Assembly Kit 15-0009-21 The 1550 Protector case is

The 1550 Protector case is designed with rugged construction and built to protect even the most sensitive equipment while traveling to the harshest environments

The Worlds Smallest

with a 2-inch mounting depth and constructed of light weight aluminum with an anodized finish

It has a size 22 socket and is black in color

O.A.T. Temperature Probe Assembly Kit 15-0009-21 The 1550 Protector case isThe 681201 1 OAT Probe Assembly will provide very accurate measurements of Outside Air Temperature (OAT) for inputs to the Air Data Computer and other airborne systems. The OAT Probe Assembly produces an output current proportional to absolute temperature.