Through Bluetooth 4.0 of iPhone / iPad connecting MS-W5DMMD from over 30 feet or 10 meters away, user can receive or transmit (control) data when measuring such as Voltage, Current, Continuity, Sense AC Current or Voltage. MEET have a series of wireless measuring instrument such as Digital Multi-Meter, Clamp Meter, Lux Meter, Sound Level Meter, UV Radiation Detector, Microwave Leakage Detector, Temperature Sensor, Humidity Sensor etc. to iDMMD.Once convinced between iPhone / iPad and MS-W5DMMD, user collects the data with additional built-in sensor of iPhone / iPad (when necessary) view / store / share the information.