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Home
New N3 NVRs & Kits
New N2 "SD" IP Cameras
New N3 HD DVRs & Kits
N2 NVRs IP Cameras & Kits
N2 HD DVRs & Kits
N2 Camera Mounts
4-in-1 HD Analog Cameras
4-in-1 HD Accessories
LED Monitors & Mounts
DC Power & Accessories
AC Power & Accessories
BNC Cables & Connectors
HDMI Cables
Other Accessories
SLA Batteries
Sirens
Legacy Video Products
Non-Supported Products
Northern Category Cables
Northern Patch Cords
Northern Fiber Jumpers
Northern Low Voltage Cables
Northern Fire Alarm Cables
Northern Alarm Cables
Northern Speaker Cables
Northern Connectivity
Northern Coax/SIAM Cables
Warranty
Where to Buy
Contact Us
Sirens
20 Watt Single Tone - Yelp
6-13.5 Volts DC, 115dB
NTH-S20WSU
30 Watt Dual Tone - Yelp & Steady
6-13.5 Volts DC, 120dB
NTH-D30WU
20 Watt Dual Tone - Yelp & Steady
6-13.5 Volts DC, 115dB
NTH-D20WU
15 Watt Dual Tone - Yelp & Steady
6-13.5 Volts DC, 108dB
NTH-D15WU
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