Theta-Meter e-meter app. Theta-Meter e-meter hardware can be connected to this app using Bleutooth LE 4.0 (or higher). This app measure electric resistence of the object, connected to Theta-Meter e-meter electrodes. This app is not intended to diagnose, treat, cure, or prevent any disease or medical or therapeutic use. Using needle indicator, this app shows the dynamics of changes in the electrical resistance of an object connected to the Theta-Meter device.