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 ar1000 is a versatile visible beam laser distance sensor that measures to 30 meters at slow speeds 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