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Features:

• The new industry standard reference for quick break detection
• Provides actual digital readout of quick break voltage, which is much more accurate than traditional "go/no go" flashing LED or neon bulb detectors
• Allows you to verify actual quality of the quick break, to warn you when contactor springs or other components may be wearing out
• Meets mil spec M-6867C
• State of the art microprocessor control analyzes quick break pulse waveform
• LCD display with large easy to read digits
• Powered by 9V battery
• Low battery indication
• NIST traceable calibration

Mil Spec Quick Break Detectors

Part Number	Description
QB-1	Quick Break Detector For 3 phase full wave DC mag units only
QB-2	Quick Break Detector and Shot Time Reader (.20 to 2.80 sec) For 3 phase full wave DC mag units only
QB-3	Shot Time Reader (.20 to 9.99 sec) For AC/DC full wave and half wave single phase units