Amazon.com Review
For use in a home or office, this electronic device plugs into a wall socket and emits a high-frequency, ultrasonic sound (30 to 60 kHz) that repels rodents but is inaudible to humans and nonrodent pets. It's humane and nontoxic but effectively chases away rodents and prevents damage and rodent-borne diseases. Under ideal conditions (few sound-absorbing materials), the repeller delivers sound to 400 square feet of space. A red LED light in front shows that the unit is working. The device measures 3-1/8 inches square, functions for five to seven years or more, and carries a 90-day, full-refund satisfaction guarantee and a three-year warranty against defects.
--Fred Brack
Product Description
PestChaser emits high frequency sound (ultrasound) in a range that repels rodents from an enclosed area. The sound is loud and very annoying to the rodents, but inaudible to people and non-rodent pets. This humane, non-toxic approach to rodent control is extremely effective and affordable. The direct plug in unit is excellent for rooms where the outlet is not blocked by furniture or drapes. Please keep in mind that each PestChaser only works in the room it is in, as ultrasound won't travel through walls or other solid objects.