Every maker and electronics enthusiast knows the importance of investing in a decent multimeter. The Mooshimeter happens to be a Bluetooth smart multimeter that connects to iOS and Android devices. It is capable of measuring 2 channels at once and keeps your readings saved to a SD card.
This multimeter can handle voltage readings up to 600V and currents up to 10A. It connects to your phone from up to 100feet. It has open source apps for your smartphone.[where to get it]