Electric pulp tester (Sono-Explorer)
Maker
1. Kyokuto Denshi K.K.
2. Hayashi Dental Co Ltd
Date
2000s Decade
Description
Black leatherette covered instrument. Front panel with speaker grill, calibrated circular marker, horizontal signal power indicator, on-off switch, check switch, volume probe, and output leads. Case is in two pieces. Back contains maker's name, battery and earphone socket.
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