Abstract: A stray voltage detection system for detecting a stray voltage in pool water within a pool The system comprises a pair of elongate conductive elements, with one of the elongate conductive elements having a detector electrode end and a terminal end, and with the other elongate conductive element having a reference electrode end and a terminal end. The detector electrode end is positioned adjacent to an electrical fixture within the pool and the reference electrode end is positioned opposite from the detector electrode end. The terminal ends are connected to a microprocessor for measuring a voltage between the detector electrode end and reference electrode end. A voltage detection system for a pier, with the system having a pair of elongate conductive elements attached to a pair of corresponding pier pilings on opposite sides of a pier deck, and with the pair of conductive elements for measuring a voltage between the conductive elements.

Abstract: A voltage detection system for detecting a stray voltage in pool water within a pool caused by an electrical fixture integral with a pool wall of the pool. The system comprises a pair of elongate conductive elements, with one of the elongate conductive elements having a detector electrode end and a terminal end, and with the other elongate conductive element having a reference electrode end and a terminal end. The detector electrode end is positioned adjacent to the electrical fixture and the reference electrode end is positioned on an opposite side of the pool and preferably a maximum distance from the detector electrode end. And, the terminal ends are connected to a microprocessor for determining if a voltage between the detector electrode end and reference electrode end is greater than a predetermined threshold voltage.

Abstract: A portable power source and control device for a mobile phone or tablet is releasably attachable to a user's key ring or key chain and sized to be carried in a pocket or purse. The device has an internal rechargeable battery to provide emergency power for operating the user's phone, USB connectors for connection a power source and the phone, an internal microcontroller, and a Bluetooth® wireless communicator. A user actuator generated a locator command causes the phone to ring to indicate its location; and a locator command from the phone causes the device to emit a sound to indicate the device's location. The device can determine and indicate via LEDs the charge level of the battery, and has flash memory for data storage and transfer between devices.