Maintenance & Annual Maintenance Contracts (AMC)
Delivered by HTZ engineers
CCTV & Video Surveillance · Home
Smart Home Surveillance You Can Check From Anywhere
Cover gates, doors and the driveway with clear day-and-night recording and live view on your phone.
- Remote mobile viewing
- Night vision coverage
- Entry-point protection
- Reliable local recording
Choose Your Solution
Architecture, buying guide, compatible products and the Package Builder all follow the solution you pick.
Wired IP topology PoE IP cameras with NVR
- IP Cameras
- Cat6 Cabling
- PoE Switch
- NVR + Surveillance HDD
- Router / Firewall
- Monitoring Workstation
Homes: wired PoE cameras are the most reliable choice; use Wi-Fi cameras only where a cable cannot reach.
Best for Highest image quality and reliability AI analytics and large systems New installations
Equipment checklist
- Required IP cameras, NVR, surveillance HDD, PoE switch, Cat6 cable
- Conditional Router/firewall, patch panel, rack, UPS
- Optional Display, workstation, AI analytics license
What to size before you buy
- Storage (TB) for your retention period
- Recorder channels and incoming bandwidth
- Number of drives for the recorder
- PoE budget of the switch
Choose Your Devices for Home
Every option below is compatible with this solution and comes from different brands and models. Choose one camera model for the whole system; the parts that must match its brand update automatically.
A home needs the gate, front and back doors, driveway and stairwell covered clearly day and night, with live view on the family’s phones. Choose one camera model for the whole house, so every view looks the same and spares stay simple.
This is the wired IP solution: IP cameras on one Cat6 cable each, powered by a PoE switch and recorded by an NVR. It is the most reliable path. It contains no analog or wireless devices.
Typical size: 4–8 cameras on an 8-channel recorder with one surveillance drive, enough for several weeks of recording.
Your setup
0 devices, one of each. Estimated:
Quantities are set in the Package Builder after your site survey.
Storage & Sizing Estimate
Tell us about the site and see how much storage you need, how many drives that is with the drive you chose above, and what the recorder and network must handle. It updates as you type.
Your site
Resolution follows the camera you choose above. Edit the bitrate if you know your camera’s real setting.
Storage you need
0 TB
- Per camera, per day0 GB
- All cameras, per day0 GB
- Incoming bandwidth0 Mbps
- Recorder channels needed0
- PoE budget needed0 W
Drives needed
| Drive | Qty | Cost |
|---|
A drive gives about 95% of its labelled size. Check the recorder’s HDD bays (see its key specs): if you need more drives than bays, pick a larger drive or a second recorder.
How it is calculated: bitrate × hours recorded per day × 0.45 GB per Mbps-hour × cameras × days, plus the spare capacity. Bitrates are typical values for 25 fps; real cameras vary with scene, motion and settings, so treat the result as a planning figure.
Buying Guide: IP Solution · Wired CCTV
What to check at each step. Tap a step to open it; products are chosen above in “Choose Your Devices”.
Step 1: Define the objective
Planning step
What this step does
Before choosing any camera or recorder, decide what the system must achieve: what must be seen, where, when, for how long, and by whom. Every later choice (camera type, resolution, storage, network) follows from this.
Why it matters
Without a clear objective, equipment is over-bought in some areas and too weak in others. A main door that must identify a visitor's face needs far more detail than a garden that only needs to show movement.
Common surveillance objectives
| Objective | What it means | Typical focus |
|---|---|---|
| Deterrence | Visible cameras discourage misconduct | Gate, doors, parking |
| Monitoring | Live viewing of activity and queues | Driveway, entrances, common areas |
| Identification | Faces, cash handling or number plates must be clear | Main door, gate, driveway |
| Investigation | Review footage after an incident | All entry points with reliable recording |
| Compliance / audit | Keep recordings for a required period | Keep footage as long as your family needs |
Detail level to decide per zone (DORI, IEC 62676-4)
| Level | Pixels per metre |
|---|---|
| Detection | 25 |
| Observation | 62 |
| Recognition | 125 |
| Identification | 250 |
Higher detail needs higher resolution or a narrower field of view. Step 4 turns this into resolution and lens choices.
Questions to answer before buying
- What must be seen: people, faces, cash, vehicles, activity?
- Which zones: main gate, doors, driveway, perimeter wall?
- When: 24/7, business hours or after hours only?
- Live monitoring, recorded review, or both?
- How many days of footage must be kept?
- Who needs access: family members, guard, remotely on mobile?
- Are there privacy, signage or audio-recording rules to follow?
- What is the budget, and will more sites be added later?
Example zone plan: Home
| Zone | Objective | Detail level | Recording |
|---|---|---|---|
| Main gate | Identify everyone entering | Identification | Continuous |
| Front door | Identify visitors at the door | Identification | Continuous |
| Driveway / parking | Monitor vehicles and movement | Observation | Continuous or motion-based |
| Back door & side passages | Detect and deter intruders | Detection to Observation | Motion-based |
| Perimeter wall | Detect climbing and loitering | Detection | Motion-based, plus alerts |
This is a planning example. Confirm zones and retention with your family before installation.
Common mistakes
- Buying cameras before defining goals
- Using the same settings for every zone
- Ignoring the retention requirement until storage is full
Step 2: IP camera type & architecture
IP Cameras
Buying guide
Choose PoE IP cameras that your NVR and switch support.
Details
- Check before buying: NVR brand, PoE class and cable route to every camera
- Common mistake: Calling a wired IP camera wireless
How to choose
- IP cameras send video and receive PoE power on one Cat6 cable (up to 100 m per run)
- Choose 4 MP for general areas and 8 MP (4K) where detail matters
- Smart cameras (AcuSense / WizSense) filter false alarms from rain, leaves and animals
- Use same-brand camera and NVR for full feature support
Rule of thumb
A sensible starting point for a home is wired IP cameras on PoE recorded to an NVR.
Key specifications to compare
- PoE 802.3af
- 4–8 MP
- H.265
- smart detection
Right product when
Resolution, lens and IR suit the distance and lighting, and the recorder supports the stream.
Step 3: Quantity & coverage
Planning step
Buying guide
Map entrances, the gate and blind spots.
Details
- Check before buying: Floor plan with entrances, the gate and blind spots
- Common mistake: Too few cameras per zone
How to choose
- Mark entrances, exits, the gate, corridors and blind spots on the floor plan
- Cover critical points (doors, the gate) with dedicated cameras before wide-area cameras
- Check for hidden areas behind pillars, shelves and open doors
- Leave spare recorder channels for future cameras
Rule of thumb
Count cameras per zone on your own floor plan, then add spare channels for growth.
Step 4: Resolution, lens & FOV
IP Cameras
Buying guide
Match pixels and lens to the detail you need.
Details
- Check before buying: Pixels per metre needed at the target distance
- Common mistake: Wide lens for face detail
How to choose
- Pixel density sets detail: 250 px/m identification, 125 recognition (see step 1)
- A wider lens covers more area but lowers pixels per metre
- Varifocal lenses let you adjust the view on site
- Higher resolution increases bitrate and storage
Rule of thumb
Narrow view on the door for faces; wide view for the garden or driveway.
Key specifications to compare
- MP rating
- focal length
- FOV angle
- pixels per metre
Right product when
Resolution, lens and IR suit the distance and lighting, and the recorder supports the stream.
Step 5: Low light & IR range
IP Cameras
Buying guide
Check sensor, IR distance and lighting.
Details
- Check before buying: Actual lighting and IR range at the install spot
- Common mistake: Trusting IR range on paper
How to choose
- Lux and IR range on datasheets are best-case figures; plan for less
- Colour night modes need ambient or supplemental light
- WDR helps with bright glass doors and entrances
- Avoid pointing IR through glass; it reflects back
Rule of thumb
Glass-fronted entrance: choose WDR and keep IR away from the glass.
Key specifications to compare
- Minimum lux
- IR range (m)
- WDR
- sensor size
Right product when
Resolution, lens and IR suit the distance and lighting, and the recorder supports the stream.
Step 6: Indoor/outdoor & IP rating
IP Cameras
Buying guide
Pick IP66/IK ratings for exposed spots.
Details
- Check before buying: IP and IK ratings plus temperature range
- Common mistake: Indoor cameras outdoors
How to choose
- IP rating: first digit is dust, second is water; IP66 handles strong water jets, IP67 short immersion
- IK rating covers impact; IK10 is the highest
- Check the operating temperature range for the site
- Use vandal-resistant housings where cameras can be reached
Rule of thumb
Outdoor or reachable spot: look for IP66/IP67 and IK10 on the datasheet.
Key specifications to compare
- IP66/IP67
- IK10
- operating temperature
Right product when
Resolution, lens and IR suit the distance and lighting, and the recorder supports the stream.
Step 7: Fixed, varifocal or PTZ
IP Cameras
Buying guide
Fixed is simple; varifocal adjusts; PTZ covers wide areas.
Details
- Check before buying: Coverage area and need for zoom or tracking
- Common mistake: PTZ everywhere
How to choose
- Fixed: lowest cost, one view, best for doors and counters
- Varifocal: fixed position with adjustable zoom at install
- PTZ: covers a large area but views one place at a time
- Use PTZ to supplement fixed cameras, not replace them
Rule of thumb
Fixed on doors and the gate; PTZ only for large open areas.
Key specifications to compare
- Lens type
- optical zoom
- pan/tilt range
Right product when
Resolution, lens and IR suit the distance and lighting, and the recorder supports the stream.
Step 8: NVR (network video recorder)
NVR
Buying guide
Match recorder type, channels and stream limits.
Details
- Check before buying: Channel count, supported codecs and resolution
- Common mistake: Too few channels
How to choose
- Channels must cover every camera plus spare
- Max incoming bandwidth (Mbps) must exceed total camera bitrate
- Check supported resolution and codecs (H.264 / H.265)
- Count HDD bays and maximum capacity per bay
Rule of thumb
Illustration: 16 cameras need at least 16 channels; plan extra if you will expand.
Key specifications to compare
- Channels
- max Mbps
- codecs
- HDD bays
Right product when
Channels, bitrate and codec cover every camera with spare bays for retention.
Step 9: Storage & retention
Surveillance HDDs
Buying guide
Calculate GB from bitrate, hours and days.
Details
- Check before buying: Daily recording hours and retention days
- Common mistake: Desktop HDDs for 24/7
How to choose
- Storage (GB) ≈ total Mbps × hours per day × days × 0.45
- Use drives rated for 24/7 surveillance recording
- Add spare capacity; actual use varies with codec, scene and motion
- Consider redundancy (RAID) for critical sites; it does not replace backup
Worked illustration
Illustration: 16 cameras × 4 Mbps = 64 Mbps; 64 × 24 h × 30 days × 0.45 ≈ 20,736 GB (about 20.7 TB).
Key specifications to compare
- HDD capacity (TB)
- 24/7 rating
- RAID
- retention days
Right product when
Drives are rated for 24/7 writing and meet the calculated retention.
Step 10: Verify compatibility
Planning step
Buying guide
Confirm camera, NVR and protocol support.
Details
- Check before buying: Manufacturer compatibility list or tested models
- Common mistake: Assuming ONVIF solves all
How to choose
- Check codec, resolution, frame rate and channel limits on both devices
- Prefer the manufacturer's compatibility list or same-brand pairing
- Confirm firmware versions before purchase
- Ask our team to verify anything not on a published list
Rule of thumb
If a camera is not on the recorder's verified list, treat it as 'Compatibility requires confirmation'.
Step 11: Bandwidth & PoE budget
PoE Switches
Buying guide
Total bitrate and switch watts per port.
Details
- Check before buying: Total Mbps and switch PoE watt budget
- Common mistake: Ignoring PoE budget
How to choose
- Total Mbps = sum of camera bitrates; keep the recorder and uplink well above it
- PoE ports: 802.3af up to 15.4 W, 802.3at up to 30 W, 802.3bt up to 60 W or 90 W
- Sum of camera watts must be below the switch's total PoE budget
- Keep every Ethernet run within 100 m
Worked illustration
Illustration: 16 cameras at 8 W = 128 W, so choose a switch whose total PoE budget exceeds this with headroom.
Key specifications to compare
- Switch ports
- PoE watts per port
- total budget
Right product when
Total PoE budget and port count cover all devices with headroom.
Step 12: Cabling & accessories
Cables & Racks
Buying guide
Cat6, connectors, boxes, conduit, racks.
Details
- Check before buying: Cable grade, length limits and connector types
- Common mistake: Cheap CCA cable
How to choose
- Use solid copper Cat6 or Cat6A, not copper-clad aluminium
- Match connectors, junction boxes and conduit to indoor or outdoor use
- Label both ends and test every run
- Plan rack space, patch panel and cable management
Rule of thumb
Run a labelled, tested cable to each camera and keep every run within 100 m.
Key specifications to compare
- Cat6/Cat6A
- 100 m limit
- connectors
- rack units
Right product when
Cable grade, length and rack space match the final layout.
Step 13: UPS & surge protection
UPS & Power
Buying guide
Keep recording through power events.
Details
- Check before buying: Required runtime and device load in watts
- Common mistake: No UPS on the NVR
How to choose
- Add up the watts of NVR, switch and powered devices
- Choose UPS runtime at your actual load, not the maximum rating
- Add surge protection, especially for outdoor cabling
- Test and replace batteries on schedule
Rule of thumb
Add the load of NVR, switch and powered devices, then pick a UPS that gives the runtime you need.
Key specifications to compare
- VA/watt rating
- runtime
- outlets
- surge rating
Right product when
Runtime and VA cover the recorder, switch and key devices.
Step 14: Displays & workstations
Displays
Buying guide
Plan monitors and a viewing workstation.
Details
- Check before buying: Monitor resolution and decoding capacity
- Common mistake: Weak decoding PC
How to choose
- Use monitors rated for continuous operation in control rooms
- The workstation must decode all live streams
- Plan monitor count and layout for the operators
- Use sub-streams for multi-camera grids
Rule of thumb
Use sub-streams for grids and the full stream for single-camera views.
Key specifications to compare
- Screen size
- resolution
- 24/7 rating
- HDMI
Right product when
Screens are 24/7 rated and the workstation can decode all streams.
Step 15: AI analytics
AI & Analytics
Buying guide
Use only features the device and license support.
Details
- Check before buying: Which cameras and licenses support each feature
- Common mistake: Assuming AI is included
How to choose
- Decide edge (in-camera) or server-based analytics
- Confirm exact events and licenses per channel
- Accuracy depends on angle, lighting and resolution
- Check privacy rules before enabling facial recognition
Rule of thumb
Confirm the exact event (such as line crossing) is listed for the camera or server and its license.
Key specifications to compare
- Supported events
- channels
- license type
Right product when
The camera, software and license explicitly support the required event.
Step 16: Secure remote access
Routers & Firewalls
Buying guide
Use strong passwords, roles and VPN.
Details
- Check before buying: VPN, user roles and password policy
- Common mistake: Open ports to the internet
How to choose
- Use a VPN instead of exposing recorder ports to the internet
- Change default passwords and use separate accounts
- Give each user only the permissions they need
- Keep firmware updated and use encrypted connections
Rule of thumb
Family members view cameras on the mobile app with separate accounts and two-step login.
Key specifications to compare
- VPN
- port forwarding
- user roles
- firewall rules
Right product when
Throughput holds under VPN and security load, with role-based access.
Step 17: Installation & maintenance
Services
Buying guide
Plan commissioning, testing and checks.
Details
- Check before buying: Site survey, commissioning and service plan
- Common mistake: No maintenance plan
How to choose
- Start with a site survey and cable route plan
- Test cabling before connecting devices
- Commission: focus cameras, set time sync, test recording and playback
- Schedule regular checks, cleaning and HDD health reviews
Rule of thumb
Handover should include a cabling test report, camera view screenshots and recording test results.
Key specifications to compare
- Survey
- installation
- commissioning
- SLA
Right product when
Scope covers survey, installation, testing and a clear support SLA.
Your installation package is calculated automatically
Open Package BuilderCamera installation ৳ 500 / camera · NVR / DVR setup & configuration ৳ 1,000 / NVR / DVR. Add products to the Package Builder and it prices the installation for you.
Compatible products · Services
View all Services
Step 18: Warranty & support
Planning step
Buying guide
Verify warranty, support and spares.
Details
- Check before buying: Warranty period, support channel and spares
- Common mistake: Unclear replacement terms
How to choose
- Compare warranty length and what it covers
- Confirm local support hours and response time
- Ask about replacement (RMA) process and spare stock
- Buy from an authorised source
Rule of thumb
Ask for warranty length, support hours and spare availability in writing.
Planning CCTV for your home?
Custom projects are quoted after consultation.