1 Place the cotton balls in areas where mice are likely to enter your house, by doorways or heat vents, etc. 2  Another helpful deterrent is to grow peppermint plants near the entryways. 3  You can use the mint in cooking as well as it serving a deterrent purpose.
Nov 12, 2015. 20 kilometers (12 miles) for a 1 milliwatt beam. Laser light can travel 20 kilometers (12 miles) per-milliwatt that is contained within the laser.
the ar2500 laser sensor is acuity s ultra compact rangefinder model this eye safe rangefinder can measure to 30 khz to natural targets 30 meters away or to reflectors 260 meters away the ar3000 is an eye safe distance measurement sensor which measures up to 300 meters at up to 2 khz