Product Review

This repeller comes with an infra-red (PIR) motion sensor which detects movement and triggers short bursts of powerful ultrasonic sound waves and flashing strobe lights when a warm body enters the controlled area.

It allows you to change the output frequency, enabling you to have the most effective solution for your particular pest problem:
13.5kHz-17.5kHz Repels animals such as mice, small rodents
15.5kHz-19.5kHz Repels animals such as large dogs, foxes
19.5kHz-23.5kHz Repels animals such as small dogs, cat

Specifications
Power supply: 3 rechargeable batteries (1.2V 1200mAh)
Detecting angle: 110 degrees horizontal (depending on weather and surroundings)
Effective distance: Max 8m (depending on weather and surroundings)

How quickly will it work?
If those animals have a habit of feeding and fouling in your garden, it can take 14-28 days to deliver the full deterrent effect. "Occasional" visitors will usually be stopped within 7 days. If you have a dog, the dog may be affected if it is allowed in the same part of the garden. The sound doesn't travel well through walls and fences, so it won't affect a dog in the house, or a neighbor's dog. Of course, as with all methods involving animal behavior, we can't guarantee effectiveness in every situation; however, our experience and feedback from customers suggest that this device is effective in almost all situations.

Warm Tips
1. Please install this device to direction of animals invading in, which will have better effect.
2. Please choose a place the solar parts of the top can get as long time sunshine as possible.
3. Frequency 5 is recommended when there is no reaction.
4. If possible, please purchase 2 units, the effect is more obvious.
5. This device does not affect birds.