General Radio Sound Level 1565-B Sound Level Meter

General Radio Sound Level 1565-B Sound Level Meter - Free Shipping

Vintage General Radio Company Sound Level Meter Type 1565-B (TESTED WORKING)

General Radio Permissible Sound Level Calibrator

General Radio GenRad 1565-B Sound Level Meter with Case & Manual

GenRad General Radio 1565-A Sound Level Meter w/ Leather Case – Untested Vintage

GENERAL RADIO 1565-B Sound Level Meter

GENERAL RADIO COMPANY 1551-B SOUND LEVEL METER no power supply