Weather proof, it runs most effectively off a Duracell battery or the mains adaptor.
Not harmful to animals.
Sends: 20-24 KHz/80-100 decibels.
Measurements: infrared detector monitors for distance of 12 metres,
Covers :125 square metres (1350 square foot).
Does not pass through anything solid (hedges, walls, fences).
Battery lasts between 3-5 months. The battery is not included.