Ultrasonic Pest Repeller Pest Repellent Ultrasonic Plug in Electronic Pest Repeller Pest Reject for Insect Roach Mice Spider Ant Bug Mosquito Repellent for House Garage Warehouse Office About this item Pest Repeller : Made To Keep Your Home Safe From A Large Variety Of Pests. Pest Reject : Ultrasonic Pest Repeller Removes Pests From Your Home Without Harming Them Using The Science Of Ultrasonic Sounds. Ultrasonic Pest Repeller : Sleep Safe Knowing That The Ultrasonic Pest Repeller Won't Do Any Harm To Your Loved Ones As It Only Repels Pests. Pest Repellent : The Ultrasonic Pest Repeller Not Only Removes Pests But Keeps Them Away. Main technical parameters: 1. Machine type: new ultrasonic mosquito repellent 2. Operating voltage: AC 90V-250V/ 50/60HZ 3. Work rate: 5W 4. Output frequency: 50kHz-60kHz 5. Effective coverage: 80120m2 (open area) Matters needing attention: 1. The machine should be installed at a distance of 20 to 80 cm from the ground, and it is required to be plugged into a power socket perpendicular to the ground; 2. The installation point should try to avoid sound-absorbing materials such as carpets and curtains to prevent the reduction of sound pressure from reducing the sound range and affecting the insect repellent effect; 3. In the first few days of use, it is normal if there is a significant increase in activities such as rats and pests. Because the rats and insects that usually hide in their nests were attacked by ultrasonic and electromagnetic waves, they fled their original hiding places; 4. The machine is directly plugged into the AC mains socket for use (voltage range: AC90V250V, frequency: 50Hz60Hz); 5. Note: moisture-proof and waterproof; 6. Do not use strong solvents, water or wet cloth to clean the body, please use a dry soft cloth dipped in some neutral detergent to clean the body; 7. Do not drop the machine or subject it to strong impact; 8. Operating environment temperature: 0-40 degrees Celsius; 9. If it is placed in a warehouse or a place where items are stacked, or on a multi-room floor, several more machines should be placed to increase the effect. Application occasions of this product: 1. Flour processing plants, food processing plants, rice plants, pharmaceutical plants, feed plants, granaries, etc. that cannot use poison baits and pesticides; 2. Theaters, restaurants, supermarkets, department stores, hotels and hospitals plagued by rodent pollution; 3. Grocery stores, clothing stores, food stores, furniture stores, etc. often bitten by rats and insects; 4. Villas, residences, air-conditioned rooms, dining halls and storage rooms of government agencies, etc. Package: 1pc