TM-315 Ultrasonic Rat/Pest Repellent (warehouse, farm and factory, restaurant use) We are selling TM-315 very well in Taiwan food factory, supermarkets, restaurant, always on carton (12pcs/1carton). Applicable for warehouse, farm and factory, restaurant Effective area:8,000 square feet for open space Frequency:12 KHZ to 65 KHZ US EPA No. 47263-TW-002, CE approval ============ Expell rats, mice ,cockroach, beetles, ticks, bees, and other insects such as fly, wasps, spiders, etc