Description Mosquito Repellent Ultrasonic Night Light Electronic Insect Repeller Household Mosquito Repellent Insect Repellent Key technical parameters: 1. Model: New ultrasonic rodent repellent Voltage used: AC 90V-250V/50/60Hz Power: 5W 4 GHz-60 GHz-60 GHz Effective coverage: 80-120m2 (open space) C. Points to Note: The machine should be installed 20~80cm above the ground and should be inserted perpendicular to the ground. 2. Installation point should avoid carpets, curtains and other sound-absorbing materials as far as possible, to prevent the sound pressure to reduce the sound field and affect the effect of insect repellent; 3. It is a normal phenomenon if rats, pests and other activities are found to increase significantly within the first few days of use.Because normally hiding in the nest mice, insects after being attacked by ultrasound and electromagnetic waves, have fled their original hiding place; 4. This machine is directly inserted into the AC electrical outlet. (Use voltage range: AC90V~250V:50Hz~60Hz; Attention: moistureproof and waterproof; Do not use strong solvent, water or wet cloth to clean the fuselage, please use a dry soft cloth dip some neutral detergent to clean the fuselage; 7. Do not drop the machine or expose it to strong impact; 8. ambient temperature: 0~40; 9. If placed in the warehouse or goods storage area, or multi-storey floor, should put a few more units, in order to increase the effect. 4. The application of this product: (1) flour processing plants, food processing plants, rice factories, pharmaceutical factories, forage factories, granaries, etc. that cannot be used with poison baits or pesticides; 2. theaters, restaurants, supermarkets, department stores, hotel hospitals, etc. affected by rodent contamination; 3. Grocery stores, clothing stores, food stores, furniture stores, etc. that are frequently bitten by rats and insects; 4, villas, residences, air-conditioned living rooms, dining rooms and storage rooms.