Ultrasonic Insect (Mosquito) Repeller
Format: Microsoft Word/PDF | Pages: 67 | Price: ₦5000 | Chapters: 1-5
ULTRASONIC INSECT (MOSQUITO) REPELLER ABSTRACT Ultrasonic electronic pest and insect repellent devices claim that their high frequency sound waves are intolerable to rodents and insects. However, simply plugging in …