... , food shop, furiture store, etc; d.Villa, house, room used air condition, dining-room, storeroom, etc.3. Main Caution: a. This repeller ... should be installed at 20-80 centimeter away from the floor, and ... : 50Hz-60Hz); e. Caution: Moisture proof, waterproof; f. Don't clean the repeller by strong impregnant, water or damp cloth. Use dry ...