SME Security Robot ROI: The Calculation for Managing Directors

Managing directors of mid-sized industrial operations in 2026 no longer ask whether security robots work. They ask whether the numbers add up. This article delivers the figures, the assumptions and the conditions. It shows under which preconditions a robot replaces or supplements the classic guard post. No model calculations with wishful values. Operational euro figures from running contracts.

SME Security Robot ROI: The Operational Calculation

A 24/7 guard post in the German mid-market costs between €15,000 and €25,000 per month. That is not an hourly rate multiplied by 730 hours, but the full-cost calculation. It includes employer contributions, vacation, sick leave, night and weekend shift premiums and the unavoidable substitution reserve. The range comes from tariff binding to the BDSW Manteltarifvertrag and regional differences between Bavaria and Mecklenburg-Vorpommern.

A QR-2 under the Robotics-as-a-Service model costs €3,500 per month. Delivery 48 hours after contract signature, no CapEx, 24 months minimum term. That yields a gross saving of €11,500 to €21,500 per month per replaced 24/7 post.

Integration costs (route mapping, WLAN audit, charging station, control room training) are a one-off €2,000 to €4,000. At a saving of €15,000 per month this investment pays back in under two months. Those who avoid full replacement run hybrid: robot at night, human by day. This model also delivers positive cash flow from month one against the pure personnel approach.

For those who want to verify the assumptions, the detailed breakdown sits in the TCO comparison guard service against robot.

Who Asks About ROI and Why Now

2025 is not the year security robots are new. It is the year the classic guard service can no longer deliver structurally. The BDSW has documented a personnel gap of 15 to 20 percent in the German security industry for years. [Source: BDSW annual report with direct link] Tariff increases drive hourly rates faster than industrial revenues grow. The BDSW industry figures show the trend clearly.

Insurers are reacting. Anyone renewing property insurance in metalworking, chemicals or logistics has received questionnaires on documented perimeter control since 2024. Gap-free logs, which a robot generates automatically, are no bonus here but a condition for the premium tier.

Supply-chain audits of large OEMs (automotive, pharma) demand the same evidence. Access documentation must be audit-proof. A human with a clipboard no longer meets this formally.

NIS-2 adds to this. Directive 2022/2555 extends the addressee circle far into the mid-market. Operations without formal KRITIS classification must also evidence physical security as part of their risk management. Improvising here risks point deductions in the audit.

TCO Breakdown over 24 Months

The honest comparison runs over 24 months because that is the minimum term in the RaaS contract and roughly corresponds to a guard service framework agreement.

Model	Cost over 24 months	Note
Classic 24/7 guard post	€480,000	€20,000 per month average
QR-2 full replacement	€84,000	plus €2,000–4,000 integration one-off
Hybrid (8h human, 16h robot)	ca. €240,000	incl. proportional day shift

The €480,000 is the visible figure. The invisible costs of classic posts come on top: recruiting during fluctuation, training of new staff, shift planning, sickness cover and escalation training. Guard staff change frequently in the mid-market. Every change means a lost training cycle.

On the robot side there are advantages that do not appear on the pure cost line. A central event API delivers structured data into the company's SIEM. Patrol logs are generated automatically and stored audit-proof. Integration with access control and fire alarm systems is standardised via open interfaces.

A worked-out hybrid calculation for mixed sites sits in the hybrid TCO in the industrial park.

Which Robot Fits the Mid-Market

Model choice is not a question of taste. It follows the geometry of the site.

The QR-1 indoor unit costs €3,200 per month and covers logistics halls, underground car parks and production areas up to around 5,000 to 8,000 m² of contiguous space. Sensors: RGB cameras and audio, light outdoor use possible in dry weather.

The QR-2 outdoor patrol is the mid-market standard. €3,500 per month, thermal person detection, 24/7 outdoor in rain, snow and frost. Rule of thumb: one QR-2 per 10,000 m² of outdoor area for two patrols per hour with full perimeter coverage.

The QR-3 (€3,800/month) is designed for KRITIS classification or specific drone exposure. For pure industrial mid-market operations without regulatory special load it is over-dimensioned.

Indoor and outdoor are planned separately. A QR-2 does not run sensibly through narrow hall aisles, a QR-1 not through muddy works premises. The split follows physical reality, not the wish for uniformity. The full three-tier pricing model shows the demarcation.

What the Calculation Does Not Show: Risk Reduction

The TCO calculation captures cost saving. It does not capture the avoided loss event. Burglary damages in the mid-market cost between €50,000 and €200,000 per incident depending on sector, excluding business interruption. [Source: GDV loss statistics with direct link] A lost production day in mid-market metalworking quickly reaches €30,000 to €80,000 in contribution margin loss. [Source: VDMA study or industry association with direct link]

A robot detects perimeter breaches in under 30 seconds. A classic round takes 30 to 90 minutes between two passes of the same point. The time during which an intruder works undetected is the decisive variable for damage amount.

Insurers factor this in. Documented technical perimeter control demonstrably leads to premium reductions, often in the range of five to fifteen percent of the property insurance premium. [Source: GDV or insurer communication with direct link] The amount is individual, the principle universal.

Occupational safety is the second hidden item. Night shifts in remote outdoor areas are critical from a risk assessment view. The robot takes over these shifts without protective equipment overhead, without emergency call button, without lone-worker procedure.

In a customer audit, documented measures count. An OEM auditor takes note of an autonomous patrol robot with live logging differently from the verbal assurance that someone walks past at night.

Typical Objections and Their Answers

Five objections come up in almost every first conversation. They are all justified and all answerable.

"The robot cannot intervene." Correct. It is sensor and documenter, not intervention force. Escalation runs via the control room or directly to police. That is exactly the workflow of the human post. A single guard does not intervene in a multi-person break-in either. He calls reinforcement.

"What happens with sabotage on the device?" The QR-2 reports manipulation, tilting or power loss in real time to the control room. Replacement device within 48 hours, that is part of the contract. Sabotage attempts are filmed and usable as evidence.

"How does the workforce react?" Pilot operations report consistently: after four weeks the robot is part of the inventory. Initial curiosity gives way to routine. Conflicts arise less often than with personnel changes in classic guard service.

"GDPR and data protection?" Video recording happens exclusively event-triggered, not permanently. Data processing agreement, deletion concept and processing register are standardised. The works council is involved under § 87 BetrVG. That is a routine procedure.

"24 months commitment is long." It is shorter than any guard service framework agreement with extended notice period and matches the payback of the integration. The safety requirements for autonomous service robots are standardised in EN ISO 13482, the regulatory framework sits in the EU Machinery Regulation 2023/1230. The contractual basis is not improvised.

Structuring the Pilot Phase

Those who take the step run it in four phases. Improvisation costs money and acceptance.

Phase one, weeks 1 to 2. Site walk-through with the integration team. Definition of patrol routes based on insurance-relevant risk areas. WLAN audit (5 GHz, gap-free coverage on the routes). Positioning of the charging station with power connection and weather-protected location.

Phase two, weeks 3 to 4. Robot commissioning. Training of reception and control room on the event console. The escalation matrix defines which alarm type goes to whom and with what response time. Test of interfaces to access control and fire alarm system.

Phase three, months 2 to 3. Parallel operation with classic guard service. This phase is not waste, it is proof. Recorded are: number of detected events per system, response time, false alarm rate and availability.

Phase four, from month 4. Transition to full or hybrid operation. The guard service contract is adjusted proportionally, notice periods were checked in phase one. The KPIs from phase three are the basis for model choice.

Defined KPIs for the entire pilot phase: number of detected events, mean response time, false alarm rate under five percent, system availability over 98 percent. [Source: manufacturer specification or contract basis link] Those who start without KPIs cannot defend the result afterwards.

Next Steps for Management

Before the first conversation, preparation worth about two hours of managing director time pays off.

First: review the existing works security contract. Notice periods, minimum term, tariff coupling to BDSW wage development. Anyone overlooking automatic renewal loses a year.

Second: compile site data. Outdoor area in square metres, hall area, critical points (gates, fuel facilities, high-bay warehouses), existing infrastructure (WLAN, camera network, access control).

Third: 30-minute first conversation with Quarero sales. After that follows a free site walk-through in the DACH region. The proposal compares the specific QR setup against current works security costs over 24 months TCO.

Fourth: decision. Typical duration from walk-through to contract signature sits at four weeks. Rollout afterwards in 48 hours from contract signature.

Those wanting to concretise the comparison for their own site start with the TCO comparison guard service against robot or go directly to the pilot request for the QR-2. The Robotics-as-a-Service model explains the contract logic in detail.