Spirit CK-900 Tuning Fork, 512 cps
The Spirit CK-900 Tuning Fork (512 cps/Hz) is a medical-grade diagnostic made from light aluminum alloy . It measures 15.9 cm long and is used by doctors to test patient hearing and sense of vibration.
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Spirit CK-901 Tuning Fork, 256 cps
Tuning Fork
Same material as CK-900 except with fixed weight. The unit is with 15.9cm long.
Frequency 256 CPS
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Spirit CK-902 Tuning Fork, 128 cps
Tuning Fork
Same material and features of CK-901. The unit is with 20.4cm long.
Frequency 128 CPS