The ZÖLLNER ZETFON is an electric signaling device.
Typ: | ZETFON 50/660 | ZETFON 1/50/660 | ZETFON 2/50/660 |
Sound pressure at 5 m distance: | 110 dB (A) +/- 3 dB (A) adjustable by ZÖLLNER |
ZETFON 50/660, if needed: upgrade to ZETFON 2/50/660 possible | 120 – 125 dB (A) |
Frequency: | 660 Hz +/- 15 Hz | 660 Hz +/- 15 Hz | |
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