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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
Pro A/V Products
Legacy Video 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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