Introducing the Power Probe Tek App: Currently for use with the Power Probe Maestro, a multi-use Circuit-Tester with built-in diagnostic power. This tool simplifies the testing of fuse boxes, verifies correct operation of motors, lights, relays, sensors, wires, and communication-circuits. The large LCD color display makes for easy viewing in direct sunlight or complete darkness. The Maestro wirelessly pairs with our Power Probe Tek App. This allows for a wireless remote display as well as data streaming or recording. All of this information can be emailed, exported or simply saved for future reference. The Power Probe Tek app is available for android. The display on mobile makes for easy viewing in direct sunlight or complete darkness. The Maestro wirelessly pairs with our Power Probe Tek App. This allows for a wireless remote display as well as data streaming or recording. All of this information can be emailed, exported or simply saved for future reference. The Power Probe Tek app is available for android.