Which 4K security camera system fits your site and purchase list? Start with the view each camera must deliver, then confirm the recorder, lighting, storage and installation items in the quote. A resolution label alone does not establish usable face or vehicle detail.
Turn the site plan into a configuration
Mark entrances, activity areas and the specific points where detail matters. For each position, record the target distance, mounting location, light conditions and available cable route. Keep an overview requirement separate from a close detail view; do not derive camera quantity from floor area alone.
| Decision | Confirm before ordering |
|---|---|
| Camera and lens | Request the exact model, recording resolution, lens and a sample at the intended distance. Do not infer identification performance from megapixels. |
| Recorder and expansion | Confirm supported camera count, recording settings, incoming bandwidth and spare capacity for planned additions. |
| PoE and installation | List cable runs and required power equipment. Confirm the power budget with illumination active and which cables, mounts and accessories are included. |
| Night recording | Specify whether monochrome evidence is acceptable or color is needed. Request moving-subject footage under comparable lighting. |
| Storage and playback | State recording hours and retention days. Confirm bitrate assumptions, installed drive capacity, overwrite behavior and an export test. |
| Order scope | Separate number of complete systems from cameras per system. Confirm exact variants, destination, timing and any requested model documents. |
Compare complete quotes
Ask each supplier to itemize cameras, recorder, hard drives, power equipment and installation accessories against the same requirement list. Confirm whether remote viewing, event search or other requested functions carry additional charges. Do not assume a listed kit includes a drive or every installation part.
Decide the night view before selecting a kit
Use the infrared versus white-light scene comparison to decide where visible lighting is acceptable. If event-triggered lighting is needed, read how dual-light switching works. Confirm the exact camera and recorder combination supports the chosen behavior.
Prepare a configuration request
Browse PoE camera systems, then request a configuration review with your site type, camera positions, desired recording days, system quantity, destination and timeline. Include any shortlisted product name or SKU. Installers can use the project planning route to organize requirements before requesting a quote.
The storage example below is a planning calculation with stated assumptions, not a capacity promise for a listed kit.
Calculate storage from the recording plan
Eight cameras averaging 4 Mbps each need about 10.37 TB for 30 days of continuous video recording. At 2 Mbps per camera, the same example needs about 5.18 TB. These decimal-TB estimates exclude audio, filesystem overhead, reserved space and growth allowance. Resolution alone does not determine retention.
Decimal TB = camera count × average bitrate in Mbps × 1,000,000 × recording hours per day × 3,600 × days ÷ 8 ÷ 1,000,000,000,000.
For eight cameras at 4 Mbps recording 24 hours a day for 30 days: 8 × 4 × 0.0108 × 30 = 10.368 TB before allowance. For mixed cameras, calculate each bitrate group separately and add the results. Use measured average bitrate where available; do not assume event recording follows a fixed duty cycle.
Check the recorder's supported drives and usable capacity, allow for audio, overhead and reserve space, then verify retention with actual recordings. These examples are not a guarantee for a particular camera or recorder.