Practical EMF Meter: for measuring the electromagnetic radiation of household appliances. Wide Application: can be apply on household appliances such as television, fan, induction cookers, etc. LCD Display with Backlight: 2-inch screen is large and easy to read, you can manual ON/OFF the backlight. Data Hold & MAX Measurement: data retention and maximum value display, one key switchable. Torch & Unit Switching: auxiliary lights up the working area in the darkness, uT/mG unit switching. Compact Design & Solid Quality: convenient for one-handed operation, and has for long time using. Electromagnetic Frequency Response Range: 5~300Hz Electromagnetic Intensity Range: 0.1~199.9mG Resolution: 0.1mG Alarm Threshold: 4.0mG Accuracy: 15% Electromagnetic Intensity Range: 0.01-19. 99uT Resolution: 0.01uT Alarm Threshold: 0.4uT Accuracy: 15% Electric Field Strength Frequency Response Range: 4Hz~3.5GHz Range of Electric Field Strength: 1~1999V/M Resolution: 1V/M Alarm Threshold: 40V/M Accuracy: 15% Temperature Range: -20~60 Accuracy: 2 Power Supply: 3 * 1.5V AAA battery (NOT included) Colour:As shown Material:plastic Package Contents: 1 x Tester Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!