1. Pressure indicating unit
2. Pressure indicating unit
3. Pressure indicating unit
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
3.1
3.2
3.3
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3.9
The design illustrates a pressure indicating unit; in particular, the design illustrates a pressure indicating unit comprising a housing for coupling to an inflatable article; The broken line showing of non-claimed subject matter is included for the purpose of illustrating enviormental structures and forms no part of the claimed design.