Main feature: 1.This machine should be installed at 20-80 cm away from the floor.And should be vertical to the floor and plug to the power socket. 2.The installing point should be avoided from carpet,curtain etc attaching sound material.Or else ,the decrease of the sound pressure will do harm on the helminthes effect. 3.It's normal that the mouse and vermin will increaseat the beginning of the using days.Because they will get away from their living place after the attack of the ultrasonic. 4.This machine can be plug directly to AC 220V(or 110v)power socket.(Power range:Ac 90 V-250V.Frequency:50HZ-60HZ). 5.Caution:moisture proof,waterpfoof. 6.Don't clean the machine by strong impregnant,water of damp cloth.Use dry and soft cloth with some neuter wash to clean the machine. 7.Don't drop the machine and make strong striking on it. 8.Using environment temperature:0-40 degree. 9.To increase the effect,you should use several sets machine at the ware house or goods pile-up,several rooms. Package including: - 2x Ultrasonic Pest Repellers
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