Tempo Communications TONE PROBE 500XP (BOXED-INT) Cable locator

The 500XP can be used with any tone generator that generates a signal of at least a few volts in the 400 Hz to 3 kHz frequency range in basic mode. For optimal performance in filtered modes, tone generators from Tempo Communications are recommended because they produce precisely filtered frequencies of 577 Hz and 983 Hz, which have been set because they are not harmonics of AC mains current at 50 Hz or 60 Hz. This text is machine translated.