Mon - Sat 8:00am - 8:00pm , Closed Sundays
Need to pick the right lens for your application or compare IR and low light cameras? Surveillance By JR's tools and calculators will answer your questions.
CCTV Lens Field of View Calculator
This handy FOV calculator will help you in determining which lens is right for your application.
DVR Storage Calculator for Analog Cameras
Calculate how much storage you will need for your security DVR if you are using analog cameras.
NVR Storage Calculator for Network IP Cameras
Calculate how much storage you will need for your security DVR if you are using network IP cameras.
Network IP Security Camera System Bandwidth Calculator
Calculate how much bandwidth you will need to support a network IP security camera system.
Voltage Drop Calculator Tool
Calculates the final voltage for each cable gauge.
CCTV System Return on Investment Calculator
Determine your potential losses without a Video Security System and how much you can save.
Volts / Watts / Amps Converter
Calculates either the volts, watts or amps if two of the values are known.
Compare the Field of View for Various Lenses
Choose from multiple scenarios and focal lengths to find the lens will work for your application.
Compare IR and low light technology
See the difference between standard, super low lux, and IR CCTV security cameras.
Compare Our Hidden Covert Cameras
Watch our sample videos to see which hidden covert cameras work best for your covert application.
Video Frame Rate Comparison Tool
Use this tool to compare video frame rate settings on video security DVR products. See how lowering the frame rate setting affects the smoothness of video on video security surveillance DVR products.