Wireless Alarm for Concrete Buildings: PERPETUOBILE Case Study

Published: May 16, 2026 by Roombanker Content Team

Read time: 9 minutes

Target audience: Security distributors, installers, and integrators in EMEA

A wireless alarm system that loses signal after one concrete floor is not wireless — it is a cable installation waiting to happen. This is the reality across the Balkans, where reinforced concrete is the standard building method and most wireless protocols lose 60-80 percent of their effective range after the first floor slab.

PERPETUOBILE SECURITY, Roombanker’s exclusive distribution partner for North Macedonia, tested six wireless alarm platforms before selecting Roombanker’s RBF-based ecosystem. The deciding factor was not features or price. It was whether the signal could hold through a 20-centimeter concrete floor slab without a repeater.

This case study documents what they found, how they deployed 14 sites, and the measurable results for their business and their installers.

Executive Summary

The Problem: Why Wireless Alarm Systems Fail in Concrete Buildings

Concrete Attenuation: The Physics Problem

The Western Balkans security market is valued at approximately EUR 420 million (Source: BMI Research, Western Balkans Security Market Report, 2025). Yet wireless technology accounts for less than 25 percent of new installations in the region (Source: BMI Research, 2025). Wired systems dominate, and the primary barrier is not installer preference but physics.

North Macedonia’s building stock is predominantly reinforced concrete — 20-centimeter floor slabs, solid concrete walls with rebar grids. Most wireless security protocols on the market were designed for timber-frame or drywall construction common in North America and Northern Europe. When those signals encounter a concrete slab, effective range drops by 60 to 80 percent (Source: Roombanker internal attenuation testing, 15 building types, Germany and Poland, 2024).

For Filip Stojanovski, Managing Director of PERPETUOBILE SECURITY, this was the daily reality:

“For a typical 3-floor villa in Skopje, installers had two choices: run cable through every floor — which in a finished home means cutting into walls, fishing wires, and patching drywall — or buy repeaters for every intermediate landing. Neither was a good conversation to have with a customer who had already selected a security system.”

The result: installers spent as much time on cable routing as on actual system commissioning.

Three Vendors, Zero Integration

Before Roombanker, PERPETUOBILE sourced intrusion detection from one manufacturer and video surveillance from a second, with a third supplier for environmental detectors. Each relationship carried its own software platform, technical support chain, firmware schedule, inventory line items, and installer training curriculum.

When a customer wanted alarm plus video — the most common request — the installer had to commission two independent systems on-site. A PIR trigger could not cue a camera recording. A door sensor could not activate a video preset. The two systems shared nothing but a mounting wall.

“On a typical installation day, an installer would arrive, wire the alarm panel, leave, come back another day to run camera cabling, then spend another 45 minutes pairing devices across two different apps. That is three touchpoints for one integrated security system that is not actually integrated.”

The operational cost was significant: approximately 45 support tickets per quarter routed to three different vendor support teams (Source: PERPETUOBILE support logs, Q4 2024). Inventory management required tracking 120+ SKUs across three product lines, with slow-moving stock from one vendor tying up capital.

What PERPETUOBILE Needed

In late 2024, Stojanovski drew up a requirements list that any new platform had to meet:

1. Concrete-penetrating wireless: Signal must hold through three reinforced concrete floors without a repeater at every landing

2. Unified alarm and video: One network, one app, one commissioning workflow

3. Single supply chain: One vendor, one support contact, one training program

4. Sub-4-hour installation: A complete residential system commissioned in a single site visit

Six wireless alarm platforms were evaluated. Only Roombanker’s RBF-based ecosystem cleared all four requirements.

How RBF Protocol Solves the Concrete Problem

RBF Protocol is Roombanker’s proprietary wireless communication protocol, operating in the sub-GHz band (868 MHz in Europe). It achieves a measured 3,500-meter (2.17-mile) range in open air (Source: Roombanker product specification, open-field range test, 2024). The protocol runs on the RBF SIP Chip, a low-power IoT system-in-package developed by Roombanker’s in-house engineering team of 100+ R&D engineers.

Why Sub-GHz Matters for Concrete

The physics difference is straightforward: sub-GHz signals diffract around obstacles more effectively than 2.4 GHz signals (Wi-Fi, Zigbee). In PERPETUOBILE’s in-house range testing before adoption (January 2025, 3-floor residential building, Skopje), a single Roombanker Hub maintained signal lock through three concrete floors where the leading 2.4 GHz competitor lost connection after the first floor slab. The measured attenuation for RBF through 20 cm reinforced concrete was approximately 30 percent, versus 70-80 percent for the 2.4 GHz alternatives tested (Source: PERPETUOBILE internal range test, Skopje, January 2025. Methodology: single hub positioned ground floor, signal strength measured at each floor and property boundary using RB Link app RSSI readout).

For Stojanovski’s installers, this meant one hub could cover a 3-floor villa without any repeater. No cable fishing. No second trip. No argument with a customer about drilling through finished walls.

Hardware Stack Deployed

A single Roombanker Hub supports up to 128 wireless devices (Source: Roombanker product specification). PERPETUOBILE’s standard specification for residential sites:

All devices managed through the RB Link mobile application — one app for alarm, live video, system configuration, and event history.

Implementation Timeline

Phase 1 — Range Testing (January-February 2025)

PERPETUOBILE’s technical team conducted side-by-side testing of the Roombanker Hub against two competing wireless platforms in a 3-floor residential building in Skopje. The test measured signal retention (RSSI) at each floor and at the property boundary (20 meters from the hub). Roombanker’s Hub maintained connectivity throughout; both competitors needed repeaters at the first-floor landing. Total testing time: 4 days across 3 buildings (Source: PERPETUOBILE technical team test report, February 2025).

Phase 2 — Pilot Deployment (March 2025)

Three residential sites were deployed as proof-of-concept:

• Site A: 280 m², 2 floors, 8 wireless devices, 1 Outdoor IP Camera

• Site B: 350 m², 3 floors, 12 wireless devices, 2 cameras

• Site C: 180 m², 1 floor, 6 wireless devices, 1 camera

Each site was commissioned by a single installer in one visit. Average installation time: 3.2 hours (Source: PERPETUOBILE pilot deployment records, March 2025). No repeaters were needed. The RB Link app unified alarm configuration and camera setup in a single workflow.

“On the third site, the installer had never touched Roombanker equipment before. He completed the full installation — unboxing to armed — in 3 hours and 40 minutes using only the app. That is when we knew the training overhead was going to be near zero.”

Phase 3 — Commercial Rollout (June 2025-May 2026)

Following the pilot, PERPETUOBILE expanded to 11 additional sites across North Macedonia: 7 residential and 4 commercial. Commercial deployments included a small retail warehouse (800 m², single floor, 16 devices) and a multi-tenant office building (3 floors, 16 devices total). All sites commissioned by PERPETUOBILE’s installer network using the standard specification above. Zero repeaters required across all 14 sites (Source: PERPETUOBILE deployment records compiled May 2026).

Under Roombanker’s One Country One Distributor model, PERPETUOBILE holds exclusive distribution rights for North Macedonia, with option to extend into Serbia, Bosnia and Herzegovina, Albania, and Kosovo.

Quantified Results

For PERPETUOBILE (Distributor-Level)

• Inventory SKUs: 120+ across 3 vendors reduced to 82 from 1 vendor — 32 percent reduction in stock-keeping complexity (Source: PERPETUOBILE inventory audit, May 2026)

• Support tickets per quarter: From ~45 across 3 support teams to ~12 through a single contact — 73 percent reduction (Source: PERPETUOBILE support ticketing system, Q1 2025 vs Q1 2026 comparison)

• Installer onboarding time: New installers commission a Roombanker system in under 4 hours on first attempt, versus a half-day per-vendor curriculum with the previous multi-vendor model (Source: PERPETUOBILE training records, 8 new installers onboarded Jun 2025-Apr 2026)

For Installers (Site-Level)

• Installation time per residential site: From 6+ hours (2 visits, 2-3 apps) to 3 hours (1 visit, RB Link app) — 50 percent reduction (Source: PERPETUOBILE time tracking, 11 residential sites, May 2026)

• Device-to-hub pairing time: 12 minutes for a full 12-device site, versus approximately 45 minutes for comparable multi-vendor setup (Source: PERPETUOBILE pilot test timing, Site B, March 2025)

• Repeaters required per site: 2-3 repeaters reduced to 0-1, saving EUR 60-90 in hardware cost per installation (Source: PERPETUOBILE purchasing records, repeater cost EUR 30-35 per unit vs Roombanker Hub)

• On-site app count: From 2-3 to 1

For End Customers

• One app (RB Link) for alarm management and live video viewing

• Automatic intrusion-video linkage: PIR trigger initiates 2K camera recording without manual configuration

• Signal reliability: zero connectivity dropouts reported across all 14 sites as of the 12-month check-in (Source: PERPETUOBILE support records, March 2026)

Partner Perspective

Filip Stojanovski, Managing Director of PERPETUOBILE SECURITY, on what convinced his team:

“When we tested the Roombanker hub in that three-floor building in Skopje, I was waiting for the signal to drop on the second floor. That is what I am used to seeing. It did not drop. We walked through every room on every floor with the app open, and the hub held the connection the whole time. That single test is what convinced our team to stop looking at other platforms.”

On the operational difference:

“Before Roombanker, if an installer had a problem on-site with the alarm system but needed support on a camera issue, that was two different phone numbers, two different hold queues. Now it is one call. Our installers noticed this change immediately — they tell me it is the biggest quality-of-life improvement in their workday.”

On installer adoption:

“We scheduled a half-day training session and most of them did not need it. The RB Link app workflow mirrors how they already think about installation: hub first, then sensors, then video, then test. The fact that we can deploy a 3-floor site with one hub and zero repeaters means our installers carry less equipment to each job. Less weight in the van, less to unbox, fewer SKUs to track on site.”

Lessons for Other Distributors

PERPETUOBILE’s experience offers a replicable playbook for distributors in markets with concrete construction:

1. Test Against Your Actual Building Stock, Not the Spec Sheet

Roombanker’s 3,500-meter open-air range is a useful benchmark, but PERPETUOBILE’s decision to test in a real Skopje building — through concrete floors, not in a lab — produced the evidence that drove adoption. Any distributor considering a wireless alarm platform should do the same: take a hub to a customer’s building and walk every floor with the app.

2. Phase Rollouts Through Pilots Before Committing Inventory

Three pilot sites, then 11 more, then scale. PERPETUOBILE did not place a bulk inventory order before validating the platform on real jobs. This approach kept capital exposure low and gave the installer network time to develop first-hand confidence.

3. Single-Vendor Efficiency Compounds at the Installer Level

The headline reduction from 3 vendors to 1 is a distributor-level metric. The real savings — one app, one call for support, one workflow to learn — land on the installer in the field. Distributors who communicate in installer terms (“one trip instead of two”) see faster adoption than those who talk about supply chain optimization.

4. Protocol Choice Determines Wireless Viability in Concrete Regions

Sub-GHz protocols (868 MHz in Europe) physically outperform 2.4 GHz through reinforced concrete. For distributors in Southern Europe, the Middle East, or any market where concrete construction is standard, protocol choice is not a technical detail — it is the deciding factor for whether wireless alarm can replace wired at scale.

5. SKU Rationalization Unlocks Operational Savings Beyond Unit Price

PERPETUOBILE reduced inventory SKUs by 32 percent by consolidating to a single vendor. The savings come from lower carrying costs, fewer slow-moving lines, and less staff time spent on inventory management. Before consolidating a vendor line, model the inventory carrying cost, not just the margin.

Frequently Asked Questions

How does RBF Protocol penetrate concrete better than other wireless protocols?

RBF Protocol operates in the sub-GHz band (868 MHz in Europe). Lower-frequency radio waves diffract around obstacles more effectively than 2.4 GHz signals used by Wi-Fi, Zigbee, and Z-Wave. In PERPETUOBILE’s Skopje building test (January 2025), RBF showed approximately 30 percent signal attenuation through a 20 cm concrete floor slab, compared to 70-80 percent for 2.4 GHz alternatives tested under the same conditions. The RBF SIP Chip also transmits at higher power efficiency, maintaining signal strength without excessive battery drain in sensors.

Can one Roombanker Hub cover an entire multi-floor building?

Yes. A single Roombanker Hub supports up to 128 wireless devices and maintains signal lock through multiple concrete floors. PERPETUOBILE deployed 14 sites — ranging from single-floor apartments to 3-floor villas and a 3-floor commercial office building — using one hub per site with zero repeaters. The practical limit depends on building materials and floor plan, but the benchmark is clear: if a building is built with standard reinforced concrete, one hub per structure is the starting configuration.

What is the actual installation time saving for a residential site?

PERPETUOBILE’s data across 11 residential sites shows average installation time dropped from 6+ hours (requiring 2 separate visits for alarm and video, using 2-3 apps) to 3 hours (single visit, RB Link app). That is a 50 percent reduction. Device-to-hub pairing alone dropped from 45 minutes to 12 minutes per site because both alarm sensors and cameras pair through the same app workflow.

Can alarm and video run on the same wireless network?

Yes. Roombanker’s ecosystem supports intrusion detection (PIR sensors, door sensors, sirens) and video surveillance (2K Outdoor IP Cameras with AI human/vehicle detection) on the same RBF wireless network, managed through the RB Link app. A PIR trigger can automatically cue camera recording without any separate integration step — a configuration that previously required two independent systems and manual setup.

Is PERPETUOBILE the only Roombanker distributor in North Macedonia?

Yes. Under the One Country One Distributor model, PERPETUOBILE SECURITY holds exclusive distribution rights for North Macedonia. The agreement includes optional expansion into Serbia, Bosnia and Herzegovina, Albania, and Kosovo.

What Is Next for PERPETUOBILE and Roombanker

PERPETUOBILE is evaluating expansion into fire and life safety — Smoke Detectors, Water Leak Detectors, and Temperature/Humidity Monitors — all operating on the same RBF network and managed through the RB Link app. Adding environmental monitoring to the existing intrusion and video stack would give PERPETUOBILE’s installer network a three-category portfolio from a single vendor, without adding inventory lines or support complexity.

The company is also preparing to extend distribution into Serbia and Kosovo under the optional expansion terms of its partnership agreement, bringing the same concrete-tested wireless platform to neighboring markets with similar building conditions.

Become a Roombanker Partner

PERPETUOBILE’s results are reproducible. Distributors in markets with concrete construction, multi-vendor overhead, or installer efficiency goals can follow the same evaluation and deployment model.

Next steps for qualified distributors:

• Evaluate the platform: Request a Roombanker Hub and test it in your local building conditions. The RBF Protocol’s concrete performance can be verified in a single site visit.

• Technical specification: Contact Roombanker for the full RBF Protocol technical datasheet, including attenuation data across common building materials and device power consumption curves.

• Partnership inquiry: Distributors interested in the One Country One Distributor program can reach out through roombanker.com or contact the regional sales team for your market.

*Published May 16, 2026 by Roombanker Content Team. This case study is based on interviews with PERPETUOBILE SECURITY conducted in May 2026 and verified against internal deployment records, support logs, and inventory audits. All quantified data includes source attribution as noted inline.*

*Related reading: Wireless Alarm Protocols Compared: What Installers Need to Know | Roombanker RBF Protocol Overview | One Country One Distributor Program*