Free tools
Free tools for low-voltage work.
The questions that come up on every camera, access control and network job, answered in seconds. No signup, nothing saved.
Pricing calculator
Price a cabling, camera, access control or AV job at typical rates, then change any price to yours.
PoE budget calculator
Will the switch power every camera, access point and phone, with room to spare?
Voltage drop calculator
How much voltage reaches the device at the end of a 12 V or 24 V run, and which wire gauge you need.
Camera field of view calculator
How wide an area a camera covers, and whether it can identify a face at that distance.
CCTV storage calculator
How many terabytes the recorder needs for these cameras and days to keep, and which drives to buy.
Every tool has a link to share its answer with a coworker or a customer.