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    • Plug in loop detector.
    • works with ALL-O-MATIC Gate operators.
    • The DSP-40S detector will add a new dimension of simplicity to your plug-in detector requirements.
    • The DSP-40S has 4 levels of sensitivity which may be changed.
    • At last a plug-in detector that will operate on any voltage from 10 to 30 volts AC or DC.