Marten defence, ultrasonic device with aggressive sinusoidal ultrasonic tones, which are perceived as extremely annoying by martens
- Keep martens away: Pulsating ultrasound makes your engine bay less inviting.
- Quiet deterrence: Ultrasonic tones are inaudible to humans.
- Low battery drain: Draws less than 2 mA.
- Wide sound coverage: Ultrasound spreads through an approximately 160° angle.
Item no. 7304
This marten deterrent uses pulsed sinusoidal ultrasound to discourage martens from approaching your vehicle. The sounds are inaudible to humans but unpleasant to martens, encouraging them to avoid the area reached by the ultrasound.
Wide-angle sound emission to deter martens
The unit operates at an ultrasonic frequency of approximately 23 kHz. Its sound emission angle of approximately 160° allows ultrasound to be emitted across a wide angle. The specified sound pressure level is approximately 105 dB (± 20 %).
Low current draw and compact dimensions
The deterrent requires an operating voltage of 11 - 15 V DC. Its current draw of less than 2 mA keeps the additional demand on the vehicle’s electrical supply low. Dimensions are approximately 58x38x31 mm, excluding the mounting tab. Allow additional space for this tab when planning the installation.
Vehicle details to consider before installation
The listed vehicle applications are Mercedes-Benz Marco Polo, Horizon, Activity, V-Class and Vito. No specific fitment information is given for W447, W639 or individual model years. The model names alone therefore do not confirm suitability for every vehicle variant.
Choose optional installation for a concealed fit
For a concealed installation in the engine bay, you can choose the optional installation service. The power supply connection is made next to the original leisure battery fuse box. The sensor is positioned behind the radiator grille so that sound can spread through the engine bay and the area in front of it.
Technical specifications
- Operating voltage 11 - 15 V/DC
- Current consumption < 2 mA
- Ultrasonic frequency approx. 23 kHz, pulsed
- Sound emission angle approx. 160°
- Sound pressure level approx. 105 dB (± 20 %)
- Dimensions approx. 58x38x31 mm (excluding mounting tab)
- e1 approval 03 3884
- Made in Germany
How does the marten deterrent work?
The unit generates pulsed sinusoidal ultrasound that is inaudible to humans. Martens find these sounds unpleasant and are therefore encouraged to avoid the area reached by the ultrasound.
Which vehicles is the marten deterrent intended for?
The listed applications are Mercedes-Benz Marco Polo, Horizon, Activity, V-Class and Vito. Specific fitment information for the W447 or W639 series, or for individual model years, is not provided.
What power supply does the unit require?
The operating voltage is 11 - 15 V DC. Current draw is below 2 mA.
What ultrasound specifications are stated?
The ultrasonic frequency is approximately 23 kHz with pulsed emission. The specified sound emission angle is approximately 160°, and the sound pressure level is approximately 105 dB (± 20 %).
How is the optional installation carried out?
With the optional installation service, the marten deterrent is fitted out of sight in the engine bay. The power supply connection is made next to the original leisure battery fuse box. The sensor sits behind the radiator grille so that sound can spread through the engine bay and the area in front of it.
What are the unit’s dimensions?
Dimensions are approximately 58x38x31 mm. The mounting tab is not included in these measurements.
What approval and country of manufacture are stated?
The unit has e1 approval 03 3884 and is manufactured in Germany. Its country-of-origin designation is Made in Germany.
optional *
plus 149€.We need your vehicle for 2 hours for the installation.
The order creation for optional installation service is done manually, in this case please do not order online.
| Brand | Kemo |
| Item No. | 7304 |
| Content | 1 piece |
| Condition | New |
| Weight | 300 g |
| Customs tariff number | 85437090 |
| Manufacturer | Kemo-Electronic GmbH Leher Landstr. 20 27607 Geestland Germany info@kemo-electronic.de |
