Description Features: brand new and high quality RADIATION DETECTION. This electromagnetic radiation detactor is suitable for monitoring the radiation of TV, computer, fridge, household electric appliances, mobile phones, micro oven, etc. LCD DIGITAL DISPLAY. Accurate digital LCD display. Data locking function. High sensitivity, one machine amphibious, available for both electric field and magnetic field. SOUND LIGHT ALARM. Dual alrms design. Loud sound alarm and light alarm. 3 X 1.5 V AAA batteries powered. NOTICE: BATTERIES ARE NOT INCLUDED Premium plastic material, compact and portable. CHILD for HEALTH for PROTECTION. Reducing the harmness of various electromagnetic radiation that may happen to your childre, olds, families. WIDE APPLICATION. Widely used in the office, home, school, hospital, laboratory,factory, outdoor adventure, ore mining, nuclear power plants construction, and industrial fields, etc. Specifications: Material: ABS Color: As Picture Shown Precision: 1V/for m; 0.01uT Range:1V/m-1999V/for m; 0.01uT-19.99uT Alarm Threshold Value: 40V/for m; 0.4uT Testing Bandwidth: 5Hz-3500MHz Test Mode: Bimodule Synchronous Test Bettery: 3 x 1.5V AAA Betteries (Not Included) Size: Approx. 13.5x6x2.7cm/5.3x2.36x1.06in Weight: Approx. 220g Note: Material: ABS Color: As Picture Shown Precision: 1V/for m; 0.01uT Range:1V/m-1999V/for m; 0.01uT-19.99uT Alarm Threshold Value: 40V/for m; 0.4uT Testing Bandwidth: 5Hz-3500MHz Test Mode: Bimodule Synchronous Test Bettery: 3 x 1.5V AAA Betteries (Not Included) Size: Approx. 13.5x6x2.7cm/5.3x2.36x1.06in Weight: Approx. 220g Package includes: 1 Piece Electromagnetic Radiation Tester