Mag-Probe & Tesla Meter App Hard Drive Magnets

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Mag-Probe & "Multi Measures" Tesla Meter App detecting magnetic fields from hard drive magnets.


The BARTOL MAGPROBE Instantly Checks Electrically Operated Solenoid Valves and Relays. It can Sense a Magnetic field as low as 3 Gauss without the Ring Magnet, 1 Gauss with the Ring Magnet attached. You can Test Electrically Operated Solenoid Valves and Relays while the Equipment is Operational, Use it Underwater, in a Vacuum, 40 below zero, and also in explosive areas. It is non-contact and very easy to use. Typically tests can be done in seconds. It is 99% faster in a volt meter. Over eighty thousand have been sold.

http://bartolmagprobe.com/

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Multi Measures - The all-in-1 measuring toolkit
By SkyPaw Co. Ltd

Multi Measures is the most handy tool kit in the world. It turns your iPhone/iPod into a multi functional measuring device with: decibel, teslameter, metronome, stopwatch, timer, seismometer, ruler, surface level and many more

Decibel

This tool turns your iPhone, iPad or iPod touch into a professional sound meter, precisely measures the sound pressure level all around you. This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event?

Teslameter

Teslameter takes advantage of the built in magnetometer in your iPhone/iPad, allows you to monitor the strength of magnetic field all around. There are a range of real-life applications for this useful item, such as: metal detector, AC magnetic fields, or finding low-magnetic places for sleeping

Metronome
Timer
Stopwatch
Seismometer
Plumb Bob
Surface Level
Spirit/Bubble Level
Ruler
Protractor