1. The machine should be installed 20 ~ 80cm away from the ground and inserted into the power socket perpendicular to the ground
2. There shall be no tall obstacles within 1 meter of the front of the product (that is, they shall not be installed on the back of refrigerators, wardrobes, sofas and other objects).
3. The installation point should avoid sound-absorbing materials such as carpets and curtains as far as possible, so as to prevent the reduction of sound pressure from reducing the sound field and affecting the insect repellent effect;
4. In the first few days after use, it is normal to find that activities such as mice and pests increase significantly. Because normally hiding in the nest hole mice, insects by ultrasonic and electromagnetic attacks, have fled their original hiding place;
5. Attention: moisture-proof and waterproof;
6, do not use strong solvent, water or wet cloth to clean the fuselage, please use a dry soft cloth dipped in some neutral detergent to clean the fuselage;
7. Do not drop the machine or make it subject to strong impact;
8. Ambient temperature: 0 ~ 40 ℃;
9. If it is placed in a warehouse or a place where goods are stacked, or on a multi-room floor, it is necessary to put more sets of this machine to increase the effect.