這是英文網站. 我節錄兩段貼於後.
大意是說美國除蟲鼠的產業界早在 80 年代就做過測試. 答案是效果不章. (注意, 是不章而非無效)
理論上它是應該有效, 可是超音波在沒有障礙物的實驗室裏與實際生活中所遇到的並不相同. 原因是超音波就像手電筒的光束一樣. 碰到障礙物效果就劇減. 屋子裏到處是家俱和物品, 所以效果不章. 如果你在空屋直接對準目標, 或許可以達到驅趕效果. 除此之外, 它是無效的.
言下之意隔了間屋子也無效. 所以看來我也是白裝了.
“The pest control industry experimented with these in the late 80s—more sophisticated units with adjustable frequencies—but with no great results,” says Bloom of Standard Pest Management, which is seeing the usual 15-20% increase in fall season mouse-related business, when mice head indoors for the winter.
“Whie ultrasonics have some limited backing by lab studies, which allow the claim to be made, the results are not replicated in the real world,” he says. “The ultrasonic waves are more akin to flashlight beams, and if there is a shadow created by a box, bag, cabinet, etc., it has no effect. You can aim it at a direct spot and possibly repel mice from that spot but that’s about it.”
內文搜尋
從 APP 打開
X