Brand	Zollner
Material	Corrosion And Seawater Resistant; Gearwheels Made Of Wear Resistant Upgraded Steel
Frequency	130 Hz
Intensity In 1/3 Octave Band Level @ 1m	138 db(A)
Intensity @ 1m	144 db(A)
Ship Class	II
Audibility Range	1.5 NM
System Voltage	230V
Dimensions (L X W)	915 x 490 mm
Weight	62 kg

The ZET-Horn sound is generated by a piston inside a cylinder driven by an AC 3-phase motor; the piston oscillates at certain frequencies making the air inside the sound projector vibrate in resonance to produce a clean sound audible over a wide range.  Higher amplitudes of the harmonics ensure the best possible penetration of the normal background noise level on board. The ZET-Horn has a run-up time of less than 0.15 seconds which guarantees a pure and concentrated sound featuring optimal directional properties.

Zöllner offers complete ship set solutions: Horns, bells, gongs, maneuver lamps, sound reception devices, signal controllers, and inclinometers.

Benefits:

• First piston type horn driven by AC 3 phase motor
• Steady lubrication with standard grease (no oil)
• Standard motor heating to avoid condensed water/ice
• Cylinder suspended vertically to allow optimum discard of spray, flood, condensation water or melted snow
• Full compliance with Colregs 1972 Annex III, IMO, and USCG regulations
• Approved by all well known international authorities and classification societies
• Relatively low weight

Brand	IBUKI
Material	Mild Steel
Model	A200
Type	A200 ESSH
Voltage	110 V
Frequency	130 Hz
Intensity In 1/3 Octave Band Level @ 1m	138 db(A)
Intensity @ 1m	144 db(A)
Audibility Range	1.5 NM
Dimensions (L X W)	915 x 490 mm
Weight	65 kg

IBUKI A200 Series Air Horns employ a diaphragm driven by compressed-air. Operation is controlled manual and solenoid. Diaphragm of A200ES-B and A200ESH-B is a new material for lower air consumption and extremely long life.