The ZGZH-64 Combined SPD integrates protection of the power supply, video signal, and pan-fit control signal with itself, applied to protection of the camera of 220V AC power supply or other similar electronic equipment. It is connected among the AC power supply line, camera line and system equipment in series, preventing the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment

The ZGZH-54 (TY) Combined SPD integrates protection of the power supply, video signal, and pan-fit control signal with itself, applied to protection of the camera of 24V AC power supply or other similar electronic equipment. It is connected among the AC power supply line, camera line and system equipment in series, preventing the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment

The ZGZH-53 (TY) Combined SPD integrates protection of the power supply, video signal, and pan-fit control signal with itself, applied to protection of the camera of 24V DC power supply or other similar electronic equipment. It is connected among the DC power supply line, camera line and system equipment in series, preventing the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment

The ZGZH-30 (TY) Combined SPD integrates protection of the video signal and data signal with itself, and can realize remote signalling. It is connected to equipment in series, suppressing induced lightning waves from the signal line and other overvoltage, and preventing the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment

The ZGZH-20 (TY) Combined SPD integrates protection of the power supply, video signal, and pan-fit control signal with itself, applied to protection of the camera of DC power supply 12V or other similar electronic equipment. It is connected among the DC power supply line, camera line and system equipment in series, preventing the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment