Maintenance & Annual Maintenance Contracts (AMC)
Delivered by HTZ engineers
CCTV & Video Surveillance · Retail
Store-Wide Coverage That Protects Stock and Cash
See checkouts, aisles, stockrooms and entrances clearly, and review every store from one place.
- Cash counter visibility
- Aisle & stockroom coverage
- Multi-branch remote view
- Incident review & export
Choose Your Solution
Architecture, buying guide, compatible products and the Package Builder all follow the solution you pick.
Wireless topology Wi-Fi / 4G cameras with wireless links
- Wi-Fi / 4G Cameras
- Local Power Supply
- Wireless Bridge / AP
- NVR + Surveillance HDD
- Router / Firewall
- Monitoring Workstation
Each wireless camera still needs power. Check signal strength at every mounting point before installing.
Best for Spots where cables cannot be run Temporary or remote areas Quick installation
Equipment checklist
- Required Wireless cameras, NVR, surveillance HDD, power supplies, wireless bridge or access point
- Conditional Router/firewall, surge protection, 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
Choose Your Devices for Retail
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.
In a store, losses concentrate at cash counters, entrances and stockrooms. The camera plan covers those first, then aisles, and the head office can review every branch from one place.
This is the wireless solution: Wi-Fi cameras on a wireless NVR with their own wireless link. It suits spots a cable cannot reach and quick installs. It contains no wired PoE or analog devices.
Typical size: 8–16 cameras per store on one recorder; entrances and counters get the closest views.
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
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 · Wireless 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 cash counter that must identify a face needs far more detail than an aisle that only needs to show movement.
Common surveillance objectives
| Objective | What it means | Typical focus |
|---|---|---|
| Deterrence | Visible cameras discourage misconduct | Entrances, cash counters, parking |
| Monitoring | Live viewing of activity and queues | Sales floor, aisles, control room |
| Identification | Faces, cash handling or number plates must be clear | Entry doors, cash counters, stockroom |
| Investigation | Review footage after an incident | All critical zones with reliable recording |
| Compliance / audit | Keep recordings for a required period | Zones covered by internal policy or regulation |
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: entrances, cash counters, aisles, stockroom, parking?
- 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: store manager, head office, security team, remotely?
- Are there privacy, signage or audio-recording rules to follow?
- What is the budget, and will more sites be added later?
Example zone plan: Retail store
| Zone | Objective | Detail level | Recording |
|---|---|---|---|
| Main entrance | Identify everyone entering | Identification | Continuous |
| Cash counters | Identify customers and cash handling | Identification | Continuous |
| Sales floor & aisles | Monitor customer flow and activity | Observation | Continuous |
| Stockroom | Record every stock movement | Recognition or higher | Continuous, plus alerts |
| Parking & loading | Detect and deter | Detection to Observation | Continuous or motion-based |
This is a planning example. Confirm zones and retention with store management and loss-prevention teams.
Common mistakes
- Buying cameras before defining goals
- Using the same settings for every zone
- Ignoring the retention requirement until storage is full
Step 2: Wireless camera type
Wireless Cameras
Buying guide
Choose Wi-Fi, 4G or solar cameras for spots cables cannot reach.
Details
- Check before buying: Signal at the mounting point, power source and internet availability
- Common mistake: Expecting a "wireless" camera to need no power
How to choose
- Wi-Fi cameras (2.4 / 5 GHz) connect to an access point or Wi-Fi NVR; walls and distance cut signal fast
- 4G / LTE cameras use a SIM card and suit sites without wired internet
- Solar + 4G kits cover poles, gates and remote areas with no power
- Use an SD card as backup recording in case the link drops
Rule of thumb
For a store, use wireless cameras only where cabling is impractical, and test the signal at every mounting point first.
Key specifications to compare
- Wi-Fi 2.4 / 5 GHz
- 4G LTE
- 12 V / solar power
- SD card backup
Right product when
Signal, power and recording path are confirmed for each camera position.
Step 3: Quantity & coverage
Planning step
Buying guide
Map entrances, cash counters and blind spots.
Details
- Check before buying: Floor plan with entrances, cash counters and blind spots
- Common mistake: Too few cameras per zone
How to choose
- Mark entrances, exits, cash counters, corridors and blind spots on the floor plan
- Cover critical points (doors, cash counters) 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
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 sales floor.
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
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
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: Signal survey & wireless links
Wireless Bridges & APs
Buying guide
Plan a dedicated link with enough throughput for every camera.
Details
- Check before buying: Signal strength, line of sight and throughput at each point
- Common mistake: Putting cameras on the shared office Wi-Fi
How to choose
- Measure signal and throughput at every camera position before buying
- Point-to-point bridges need clear line of sight between the two ends
- Give cameras a dedicated access point or SSID, separate from guest and office Wi-Fi
- Each camera uses about 2–6 Mbps; keep the link under half its real capacity
Rule of thumb
Survey every camera point and plan a dedicated bridge or access point so camera traffic never competes with office Wi-Fi.
Key specifications to compare
- Frequency
- real throughput (Mbps)
- range / line of sight
- PoE powered
Right product when
Link throughput covers all cameras on it at under half capacity.
Step 8: NVR for wireless cameras
NVR
Buying guide
Use an NVR that supports your wireless cameras and their bitrate.
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: Power at every camera
CCTV Power
Buying guide
Plan a protected power point, PoE injector or solar kit per camera.
Details
- Check before buying: Nearest power point and outdoor protection at each camera
- Common mistake: Running extension cables to outdoor cameras
How to choose
- Every wireless camera still needs a 12 V adaptor, PoE injector or solar panel and battery
- Use outdoor-rated, weatherproof power points or junction boxes
- Size solar panels and batteries for cloudy days and night-time IR
- Add surge protection on outdoor power feeds
Rule of thumb
Plan a protected power point (or a solar kit) for each wireless camera before buying it.
Key specifications to compare
- 12 V adaptor
- PoE injector
- solar panel + battery
- surge protection
Right product when
Every camera has a safe, weatherproof power source sized for 24-hour use.
Step 12: 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 13: 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 14: 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 15: 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
Head office views every store over a VPN with separate user accounts.
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 16: 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 Builder
Camera 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
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Step 17: 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 stores?
Custom projects are quoted after consultation.