Posted in Ltd, Shopping, Stores, TOMTOP Technology Co. TOMTOP Technology Co., Ltd: 37% OFF VT-ER3 5-in-1 Electromagnetic Radiation Detector Comprehensive Radio Frequency Electric Field Magnetic Field Strength Temperature Humidity Tester with Customizable Settings,28.82? Offer expires 09-30-2024. Click the title above to go to offer. Share: TwitterFacebookPinterestLinkedin