Bierer Meters a family owned manufacturer of the most extensive and comprehensive line of Voltage Detectors, Phasing Voltmeters, Personal Grounds and Service Testers, Primary and Secondary Cable ID devices, available in the industry. Testing for voltage presence or absence is crucial to a worker's safety and system maintenance. We provide Training and Safety Factory Direct Support, long term Repair and Calibration Service. Answering Technical calls and questions regarding our Tool Line for Electrical Utilities, Electrical Utility Contractors, and Commercial/Industrial Electrical Contractors. Tough, Dependable, and Supportive, the name you can trust in Personal High Voltage Testing, Bierer Meters.