Introduction
Thank you for choosing the ISOTRONIC Ultrasonic Marten Repellent. This device is designed to deter martens and other pests from your vehicle, attic, cellar, or garage using high-frequency ultrasonic waves. It operates without traps or harmful chemicals, providing a humane and effective solution. Please read this manual carefully before installation and use to ensure optimal performance and safety.

Image: The ISOTRONIC Ultrasonic Marten Repellent device, a compact unit designed for pest deterrence.
Safety Information
- Keep the device out of reach of children and pets. While the ultrasonic sound is generally harmless to humans and common pets, direct exposure at close range should be avoided.
- Do not open the device casing. There are no user-serviceable parts inside.
- Ensure batteries are inserted with correct polarity.
- Dispose of used batteries according to local regulations.
- This device is designed for indoor and protected outdoor use (e.g., engine compartment, attic, cellar, garage). Avoid direct exposure to heavy rain or extreme weather conditions.

Image: A family with a dog, emphasizing that the repellent is non-toxic, odorless, and chemical-free, making it safe for households.
Setup and Installation
- Battery Insertion: Open the battery compartment. Insert 6 AAA batteries (included in the package) ensuring correct polarity (+/-). Close the compartment securely.
- Placement: Choose a suitable location for the device. For vehicles, place it in the engine compartment where martens are likely to enter or cause damage. For attics, cellars, or garages, position it in an area with clear line of sight to cover the desired range. The ultrasonic waves can be transmitted up to 40 m² in enclosed spaces.
- Mounting: Use the provided cable ties or screws to secure the device. Ensure it is firmly attached and not prone to falling or shifting.
- Activation: Turn on the device using the integrated ON/OFF switch. A small LED light will indicate operation.

Image: A woman demonstrating the easy installation of the repellent device within a car's engine compartment, secured with cable ties.

Image: A diagram illustrating the automatic ON/OFF function (activates after 60 seconds when stationary) and suitable application areas such as attics, cellars, garages, and engine compartments.
Operating Instructions
- Automatic Operation: The device features an automatic stop function. When installed in a vehicle, it automatically activates approximately 60 seconds after the vehicle stops. It deactivates in case of vibrations generated by the engine or during driving. This conserves battery life and ensures protection when the vehicle is parked.
- Continuous Deterrence: The device emits ultrasonic waves at a frequency of 23 kHz, which is unpleasant for martens and other pests, effectively deterring them from the protected area. This effect is durable and does not require traps or baits.
- Manual Switch: An integrated ON/OFF switch allows you to manually turn off the device. This is useful for maintenance work in the engine compartment or when the device is not needed for a period.

Image: An illustration showing the device's effectiveness against various pests like mice, rats, martens, and dormice, highlighting its battery-operated, mobile, and effective nature for protecting homes and cars.
Maintenance
- Battery Replacement: When the LED indicator light dims or the device stops emitting sound, it's time to replace the batteries. Always replace all 6 AAA batteries at once.
- Cleaning: Wipe the device with a dry or slightly damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure no moisture enters the device.
- Inspection: Periodically check the device and its mounting for any signs of damage or loose connections, especially if installed in a vehicle engine compartment.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not turning on / No LED light | Dead or incorrectly inserted batteries. | Check battery polarity. Replace all 6 AAA batteries. |
| Marten activity persists | Improper placement; Obstructions blocking ultrasonic waves; Device malfunction. | Relocate the device to an unobstructed area. Ensure the device is active. If issues persist, contact customer support. |
| Device turns off unexpectedly (in vehicle) | Vibrations from engine or movement. | This is normal operation due to the automatic stop function. The device will reactivate when the vehicle is stationary for approximately 60 seconds. |
Specifications
- Model Number: 893540
- Dimensions (L x W x H): 17 x 8 x 6 cm (6.7 x 3.1 x 2.4 inches)
- Item Weight: 1050 Grams (2.3 lbs)
- Power Source: 6 x AAA Batteries (included)
- Material: Acrylonitrile Butadiene Styrene (ABS)
- Ultrasonic Frequency: 23 kHz
- Effective Range: Up to 40 m² (in enclosed spaces)
- Features: Automatic ON/OFF with vibration sensor, integrated switch
- Color: Green
- Country of Origin: China

Image: A diagram illustrating the dimensions of the ISOTRONIC marten repellent: 11.5 cm length, 6.8 cm width, and 3.8 cm height, along with icons for battery operation, ultrasonic sound, wide coverage, and eco-friendliness.
Warranty and Support
ISOTRONIC products are manufactured with quality and reliability in mind. For specific warranty information, please refer to the packaging or contact your retailer. If you encounter any issues or have questions regarding your ISOTRONIC Ultrasonic Marten Repellent, please contact ISOTRONIC customer support through their official website or your purchase platform. Please have your model number (893540) and purchase details ready when contacting support.