Chesilvale Tone Generator RJ11, 52025776

Tone Probe 510/Tone Generator HP77 Kit

Tone Probe 510 features:

Wide frequency response
Nautilus casing-high impact resistance, waterproof and proof tested to IP67
Micro processor controlled
Key press timing, Confirmation tones
Battery low warning and auto shut-off
Headset connection, Sealed electronics
Sealed battery (PP3 9V not included)
Large speaker
Wrist wrap, One button control
Crush proof, Chemical resistant

Tone Generator HP77 features

Alternating dual frequency audio tone (900-1000Hz: 7Hz switching rate)
Voltage polarity test (=120Vdc)
Continuity test (14mA dc)
Talk mode: provides current for operating two handsets
One RJ11 connector & 2 crocodile clip connectors
Ringing voltage indication (=110Vrms)