These are TTC model C6900
RF SWR Watt Panel Meter
0 to 20 Watts

Full Scale = 100uA DC

Meter Face: 2.35 inch wide x 2.35 inch tall
Panel thickness: 0.40 inch
Body depth (behind panel): 0.94 inch
Mounting stud length:0.40 inch
Overall depth with terminal posts: 1.40 inch

These are factory new parts. They have never been installed and have not been recovered from manufactured electronic components.