Review on Mini Digital EMF Meter - Handheld Electromagnetic Field Detector with Backlit LCD, Sound & Light Alarm - Includes 2 Stickers - CAMWAY by Andrew Mack

Works very well, not sure how accurate the measurements are as I have nothing to compare but has higher numbers around items than if you think they will get higher numbers. Easy to use. I bought it as a gift so I didn't check the stickers that came with it to see if they did anything or not.