Description
Marco 104 120 15, BK1
Back-up alarms designed for forklift, excavators, buses, trucks, and earth moving machines.
Back-up alarms with different sound pressures, 85 and 95 dB, equipped with a professional loudspeaker, controlled by a microprocessor with EMI filter protection. (EMI filters suppress electromagnetic noise transmitted through conduction)
Technical data:
- Universal voltage 6-100V.
- Waterproof
- Resistant from -30° up to +80°C.
- Two positions fixing.
- AMP: 0,1 – 0,3
- dB (A): 85/95
- Hz: 950/1850
- Weight (kg): 0,2
- Reference: Marco 104 120 15
- Type: BK1
- IP 67: Code, International Protection Marking.
Dust tight: No ingress of dust; complete protection against contact (dust tight)
Immersion up to 1 m: Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).
Ingress Protection code documentation
Wiring diagram

Dimensions
About MARCO
MARCO manufacture electric and air horns for cars, trucks and boats, as well as electric pumps for the transfer of various liquids.
These products are manufactured using the most advanced production equipment, such as spectrum analysers, vibrating stands, and other sophisticated instrumentation, including an anechoic chamber, for the development and testing of products.
Today the use of advanced technology enables MARCO to reach the highest International Quality Standards, allowing the creation of highly competitive products that are exported daily to over 80 countries.












