Astek Security & Automation: Wired vs Wireless Alarm Systems

Wired Alarm Systems

Pros:

• More stable and reliable (no interference or battery issues).

• Ideal for permanent installations.

• Better for large homes or commercial setups.

Cons:

• Installation is invasive and labour-intensive (cabling must be routed).

• Harder to relocate.

Best Used:

• New builds (can run cables during construction).

• Commercial or industrial sites.

• Homes with easy access to roof/ceiling for cabling.

Wireless Alarm Systems

Pros:

• Easier and faster to install.

• Modern systems (like AJAX or Paradox) are highly reliable.

• Can be relocated if you move.

• Stylish and minimalistic (especially Ajax).

Cons:

• Battery-powered devices require maintenance.

• More expensive upfront per device.

• Susceptible to interference if not encrypted.

Best Used:

• Existing homes or rental properties.

• Small businesses or outbuildings (e.g., garages, garden cottages).

• When aesthetic and quick installation matter.

Indoor Passives vs Outdoor Beams

Indoor Passive Infrared (PIR) Sensors

• Detect motion via infrared heat (body temperature).

• Commonly installed in rooms, passages, and garages.

• Low cost, effective indoors.

Use Case:

• Inside residential or office spaces.

• As a second layer of defense after outdoor detection.

Outdoor Beams

• Usually use active infrared (AIR) or microwave technology.

• Detect movement or heat outside, before a break-in happens.

• Typically weather- and animal-resistant.

Types:

• Point-to-point beams: Send a signal between a transmitter and receiver (straight line).

• Strip (curtain) beams: Create a vertical or horizontal detection curtain across an area.

Strip Beams vs Point-to-Point Beams

Point-to-Point Beams

Use When:

• Protecting perimeter fences or driveways.

• Need to cover long straight distances (up to 100m+).

Pros:

• Accurate detection.

• Less prone to false alarms when set up properly.

Cons:

• Line of sight required.

• Can be triggered by pets, trees, or fog if not properly aligned.

Strip or Curtain Beams

Use When:

• You want a "wall of detection" across windows, patios, or corridors.

• Vertical or horizontal applications (e.g., under roof eaves).

Pros:

• More coverage in a smaller space.

• Ideal for building facades and entrances.

Cons:

• Shorter range than point-to-point.

• May require more precise alignment or multiple units.

Paradox, Ajax, Optex Beams — Comparison

Paradox Beams

• Good balance between price and performance.

• Ideal for integration with Paradox alarm panels.

• Reliable wired and wireless options (MG series, NV780MR).

Best For: Users already using Paradox systems.

Ajax Beams

• Modern, sleek, fully wireless.

• Encrypted communication.

• Easy app-based control and battery life up to 5–7 years.

Examples: MotionProtect Outdoor, DualCurtain Outdoor.

Best For: Stylish, modern homes. High-tech users.

Optex Beams

• Industry-leading outdoor sensor technology.

• Works with many brands (including Paradox, Ajax via integration modules).

• Known for stability, pet immunity, and harsh weather resistance

Alarm Stellenbosch