If feral cats use your garden as a litter box, install the Contech ultrasonic cat repeller. Motion activated, the Catstop uses a high decibel alarm that startles the cats to leave while not disturbing the peace.
Place the Cat Stop facing the area you want to protect. An animal entering the area sets off the built-in motion sensor. The ultrasonic alarm is from 21-25 kHz. Humans hear sounds between 2 kHz and 20 kHz so this rarely disturbs people. Note: Most dogs hear at frequencies between 40 kHz to 100kHz.
Cat Stop operates for about nine months on one standard 9 volt battery. (Battery life estimate is based upon 4900 activations over 245 days at an average of 20 per day.)
The CatStop protects about 330 square feet (20 feet or 6m in front of the unit in an 80 degree arc). There are no controls or adjustments. Install the battery. Position it. Turn it on.
The CatStop is an effective cat deterrent because:
A powerful burst of ultrasonic sound startles the cat.
The cat equates the location with the unpleasant sound.
The cat avoids the location in the future.
Unlike many pest deterrents that operate continuously, the CatStop unit waits for the animal to come into range before activating. This creates a greater startle effect.
CatStop Highlights:
Ultra sound based concept: Safe, effective cat pest control without chemicals, visually objectionable barriers or shock.
Infrared detection range: 80 degrees across a 20 ft distance in front of the device.
Passive ultrasonic detector: Operates unattended. Activates when movement is detected.
Operates 24/7: CatStop protects day and night for up to 6 months (or 4900+ activations) on one 9 volt battery.
Silently creates a temporary sound 'barrier': Works where fences are not allowed or are impractical. Keeps neighborhood cats from violating your space without drawing attention to your efforts.
Simple Installation: Easily extend coverage with additional CatStops.
Power supply: 9V battery (not included).
Output: 124 dB.
Sensor warm up time = 40-60 seconds when battery is first inserted.When you activate the unit, the red light will come on for 3 seconds, and then turn off. It takes approximately 8 seconds for it to re-charge between activation
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