Rodent Control Indoor Cockroach Mosquito Insect Killer Ultrasonic Pest Repeller Plug Electronic mosquito repellen Feature: 100% brand new and high quality Product detailed parameters: 1. Main technical references: 1. Models: new increased power ultrasonic rat repellent 2. Power supply: AC, AC 90-250V/50-60HZ 3. Product power consumption: <3w 4. Output power: 22-50HZ 5. Effective coverage: 80-120m2 2. Matters needing attention: 1. The machine should be installed 20-80cm from the ground, and it should be inserted into the power socket perpendicular to the ground. 2. The installation point should try to avoid sound absorbing materials such as carpets, curtains, etc., in order to prevent the reduction of the sound pressure to make the sound range smaller and affect the effect. 3. Within a few days before use, if it is found that the activities of rats and pests have increased significantly, this is a normal phenomenon, because the rats that usually hide in the nests, after being attacked by ultrasound and electromagnetic waves, the pests have fled their hiding places. 4. Note: moisture-proof and waterproof. 5. Use ambient temperature: 0-40 degrees Celsius. 6. If it is placed in a warehouse or where items are stacked, or on a multi-room floor, several more should be placed to increase the effect. 7. The effect of similar products at this stage has not yet reached 100%. 3. The application of this product: 1. Flour processing factories, food factories, rice factories, pharmaceutical factories, feed factories, etc. that cannot use poison bait and pesticides. 2. Theaters, restaurants, supermarkets, hotels, etc. that are plagued by rodent and insect pollution. 3. Grocery stores, clothing stores, food stores, furniture stores, etc. often encountered by rats and insects. 4. Villas, homes, air-conditioned homes, dining halls and storage rooms of institutions, etc. Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x pc