Hi all, The local University had a problem with mice in pianos last fall. They now use these little devices and I have not seen any more evidence of mice in the practice rooms. I really like the fact that there is no poison involved, no cruel traps and no icky clean up. The U of S is using model M770 which costs around $13.00. Here's a quote from the site - "The PestChaser emits high frequency ultrasonic sound waves between 32 and 62 kHz to create an acoustically hostile environment that repels rodents from sound-protected rooms. It's kinder than traps, safer than poisons, and completely inaudible to people and non-rodent pets. Unlike traps and poisons, the PestChaser minimizes human contact with disease-bearing rodents (no dead rodents to dispose of)." http://www.victorpest.com/sonic_pest_control.htm Hope this helps. Norma Neufeld Saskatoon, SK
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