The Full Fleximodo Order History of S O NAH GmbH: From NB-IoT Sensor Standard to LoRaWAN Sensor Mini in Aachen, Germany

Deployment Snapshot (Cumulative)

---

Order / Deployment Timeline

---

The Client

S O NAH GmbH (stylised as SONAH) is an AI-based smart parking and smart city solutions company founded in 2016 in Aachen — Germany's westernmost major city, sitting at the border where Germany meets Belgium and the Netherlands, historically the ancient capital of Charlemagne's Carolingian Empire and today the home of RWTH Aachen University, one of Europe's leading technical research clusters. Founded by Christian Bartsch, Thomas Grimm, and Victor ter Smitten, the company has grown to 16 employees and more than 80 IoT setups deployed across Europe.

SONAH operates at the intersection of AI and sensor hardware in the smart parking market, combining camera-based overhead detection, in-ground parking sensors, computer vision, and machine-learning analytics into integrated parking management platforms for municipalities, commercial property owners, and mobility operators. Its flagship project — a digitalisation initiative covering 1,000+ parking spaces in Aachen — illustrates the company's core focus: mid-sized German cities where parking congestion is a real problem but budgets and scale don't justify the major systems integrators that typically serve Frankfurt, Munich, or Berlin. Beyond parking, SONAH's portfolio extends into smart streetlight integration, digital recycling centres, and digital parking enforcement software, positioning the company as a multi-service smart city partner rather than a single-product vendor.

Reading SONAH's two Fleximodo orders together tells the story of exactly that kind of sophisticated technology buyer: an evaluation-first order that proves the concept at scale, followed — after a full field-deployment learning cycle — by a return order that reflects a deliberately revised hardware and connectivity strategy.

Order One (October 2023): Equipping an Entire City with NB-IoT Sensor Standard and Decade-Long Connectivity

SONAH's camera-based systems work well in controlled environments — overhead positions in car parks and garages where sightlines are clear. But on-street urban parking across multiple city zones creates coverage problems that cameras alone can't solve: trees, awnings, building overhangs, and varying street widths make camera placement difficult and maintenance expensive. For wide-area on-street deployment across multiple zones within a city — or across multiple cities — SONAH needed a complementary in-ground parking sensor layer that operates independently of camera infrastructure.

The scale of SONAH's first order — one of the largest single procurements in Fleximodo's tracked history — indicates the company was equipping an entire city's on-street parking network, not a single zone or pilot project. The order comprised:

• IoT Parking Sensor Standard (NB-IoT, in-ground) — production-grade NB-IoT parking sensors with a 1-year warranty, sized for wide-area on-street deployment across German urban zones
• 1NCE SIM card connectivity (10-year) — pre-paid cellular data plans providing a decade of NB-IoT connectivity per sensor, with Fleximodo support included throughout the SIM lifetime
• FCA shipping (Incoterms 2020) — Free Carrier terms, meaning SONAH arranged its own logistics from the designated delivery point rather than relying on delivered shipping

This order represented an estimated 200-300+ sensors with bundled 10-year connectivity — sufficient to equip the entire on-street parking infrastructure of a mid-sized German city. The 1NCE SIM inclusion was strategically important: by pre-paying for a decade of cellular connectivity, SONAH eliminated recurring telecom costs from its municipal pricing model. The sensors became true install-and-forget infrastructure — no annual SIM renewals, no connectivity renegotiations, no supplier changes for ten years, comfortably outlasting the sensor's own 6-year battery life.

The FCA terms were also notable: unlike most Fleximodo orders that include delivered shipping, SONAH's FCA arrangement meant the company took responsibility for transportation from the carrier handoff point — evidence of its own logistics chain, likely coordinating sensor delivery directly to municipal installation sites rather than a central warehouse, which is more efficient for multi-zone deployments across dispersed urban locations. No managed backend (IoT Hub) was included in this order either, confirming that SONAH processes sensor data through its own smart parking platform — Fleximodo sensors as commodity hardware feeding a proprietary analytics layer that combines in-ground sensor data with camera feeds and AI analytics into a unified municipal dashboard.

Order Two (September 2025): The Pivot to Hardware-Only LoRaWAN Sensor Mini

Twenty-three months later, SONAH returned to Fleximodo with a second order that was larger than the first — and, more significantly, represented a completely different product configuration. What makes this return order interesting is not just the scale but the deliberate pivot in hardware strategy. Four distinct specification choices shifted between the two orders:

Sensor Standard → Sensor Mini. SONAH moved from the full-size in-ground Sensor Standard (115 mm diameter, 6-year battery, IP68/IK10) to the compact exterior Sensor Mini. This implies either a different deployment context — installation environments where the smaller Mini form factor is preferable — or a different commercial model, with Sensor Mini unit economics enabling broader coverage at similar cost.

NB-IoT → LoRaWAN. Connectivity architecture shifted from cellular NB-IoT (dependent on operator coverage and per-SIM connectivity charges) to a LoRaWAN parking sensor setup (dependent on gateway infrastructure but with much lower per-sensor connectivity costs). This implies SONAH built out LoRaWAN gateway infrastructure in the intervening period — its own gateways, customer gateways, or partnership access to public LoRaWAN networks.

Bundled connectivity → hardware only. The 2023 order included Fleximodo connectivity bundled with the hardware; the 2025 order is hardware only, meaning SONAH now manages the entire connectivity stack itself. For a customer operating at scale, this is a significant operational simplification: fewer vendor relationships, unified network operations under customer control, and lower per-sensor connectivity costs at volume.

1-year warranty → 5-year limited warranty excluding battery. This is the most technically distinctive change. The 5-year limited warranty covers the sensor's electronic and mechanical components but explicitly excludes the battery, which has a predictable lifetime best handled as a planned maintenance item rather than a warranty claim. This extended warranty structure is typically reserved for larger orders or established customers with proven deployment practices.

Taken together, these four changes describe a customer who evolved its deployment strategy between orders and who is now purchasing hardware under a production-scale, customer-managed operating model — the classic trajectory of a sophisticated technology buyer: first-order full-stack evaluation, field deployment experience, operational learning, and a second order that reflects the lessons of the first.

The order itself comprised:

• IoT Parking Sensor Mini Extérieur (LoRaWAN) — hardware only, 5-year limited warranty excluding battery
• Shipping to Germany

The "HW only" designation means Fleximodo delivered raw hardware without bundled connectivity, backend services, or support — a pure product transaction. For a sophisticated customer like SONAH, which already owns its connectivity infrastructure, backend integration, and support operations, HW-only procurement is the most cost-effective option because it strips out the service margins that Fleximodo would otherwise include in a bundled configuration. The customer takes on the hardware and full responsibility for everything downstream.

The 23-month gap between the first and second orders represents roughly the time a sophisticated technology customer needs to complete a full deployment-learning cycle: install the first-order sensors, operate them through at least one full seasonal cycle (important for outdoor European deployments), analyse the operational data, refine the deployment strategy, and return with a revised specification. That the second order is larger than the first, and reflects deeper customer understanding of what SONAH actually needs, confirms the first-order evaluation succeeded — and that SONAH is now expanding deployment on the basis of a refined strategy rather than repeating the original one.

For Fleximodo, the SONAH pattern is a useful proof point: customers can evolve their hardware strategy across product families and connectivity architectures while staying with Fleximodo as their sensor supplier. A rigid vendor — one that only sells Sensor Standard with bundled NB-IoT connectivity — would likely have lost SONAH to a competitor when its strategy shifted toward LoRaWAN Sensor Mini. A flexible vendor that supports multiple products, multiple protocols, and multiple procurement models retains the customer through that strategy evolution instead.

Across both orders, the underlying detection technology stayed constant. Both Sensor Standard and Sensor Mini rely on Fleximodo's dual detection technology — a magnetometer paired with radar — to register vehicle presence. The magnetometer half of that pairing is inherently temperature-sensitive: magnetic-field sensing can drift as ambient temperature swings between a German winter and summer. Fleximodo addresses this with automatic temperature compensation, which continuously recalibrates the sensor's magnetic baseline against measured temperature so seasonal extremes don't register as false vehicle events — a consideration that mattered for SONAH's first-order in-ground sensors across the full -40°C to +85°C operating range, and matters just as much for the second-order exterior LoRaWAN Sensor Mini units expected to run outdoors for years under their 5-year warranty.

Technical Profile: Sensor Standard (NB-IoT, In-Ground) — Order One

Specification	Detail
Detection method	3-axis magnetic field + nanoradar (dual detection technology)
Detection accuracy	99.96%
Dimensions	115 mm diameter, height 64 mm
Weight	390 g
Battery	3.6 V, 13-19 Ah (6-year operational lifetime)
Connectivity	NB-IoT (with 1NCE 10-year SIM)
Ingress protection	IP68
Impact resistance	IK10
Weight endurance	Up to 8 tonnes
Operating temperature	-40 to +85 °C
Casing	Ultrasonically welded into one piece
Certifications	ISO 9001, ISO 14001, ISO 45001, DNV, CE, FCC
Warranty	1-year standard warranty

Technical Profile: Sensor Mini Extérieur (LoRaWAN, Exterior) — Order Two

Specification	Detail
Sensor model	IoT Parking Sensor Mini Extérieur (LoRaWAN)
Procurement model	HW only — no bundled connectivity, backend, or support
Connectivity	LoRaWAN (customer-managed)
Detection method	Magnetometer + radar (dual detection technology) with automatic temperature compensation
Warranty	5-year limited warranty excluding battery
Intended environment	Exterior deployment
Shipping	To Germany

Both sensor families share the same underlying magnetometer-plus-radar dual detection technology and the same 99.96% accuracy benchmark maintained through automatic temperature compensation — the difference between the two orders is form factor, connectivity protocol, procurement model, and warranty structure, not detection reliability.

---

Fleximodo smart parking technology is deployed in 30+ countries. View all products | Urban Lighting Innovations — German smart city integrator with Fleximodo NB-IoT | multiGuide — Largest Fleximodo procurement partner | Stadt Ulm — Municipal Fleximodo LoRaWAN deployment | PRIMEC Italy's LoRaWAN Sensor Mini first order

---

Frequently Asked Questions

What is S O NAH GmbH? S O NAH (SONAH) is an Aachen-based AI smart parking and smart city company founded in 2016 by Christian Bartsch, Thomas Grimm, and Victor ter Smitten, with 16 employees and 80+ IoT deployments across Europe. The company combines camera-based overhead detection, in-ground parking sensors, computer vision, and AI analytics into integrated parking management platforms for municipalities and mobility operators. Its Aachen flagship project covers 1,000+ parking spaces, and the company also provides smart streetlights, digital recycling centres, and digital parking enforcement software.

How many orders has SONAH placed with Fleximodo, and how do they differ? SONAH has placed two orders to date. The first, in October 2023, was a large-scale purchase of IoT Parking Sensor Standard (NB-IoT, in-ground) bundled with 10-year 1NCE SIM connectivity — one of the largest single Fleximodo procurements on record, sized to equip an entire mid-sized German city's on-street parking network. The second, in September 2025, was a return order for IoT Parking Sensor Mini Extérieur (LoRaWAN), purchased hardware only with a 5-year limited warranty excluding battery — larger in scale than the first, but a complete pivot in sensor family, connectivity protocol, and procurement model.

Why did SONAH choose 10-year 1NCE SIM connectivity for its first order? Pre-paid decade-long cellular connectivity eliminated recurring telecom costs from SONAH's municipal pricing model. The sensors became true install-and-forget infrastructure — no annual SIM renewals, no connectivity renegotiations — comfortably outlasting the sensor's 6-year battery life and giving SONAH pricing certainty when bidding for multi-year municipal contracts.

Why did SONAH pivot from NB-IoT Sensor Standard to LoRaWAN Sensor Mini between orders? Hardware strategy shifts like this reflect operational learning across a full deployment cycle. Having evaluated the flagship Sensor Standard with bundled NB-IoT connectivity, SONAH concluded after roughly 23 months of field experience that the Sensor Mini form factor combined with LoRaWAN connectivity — using customer-managed gateway infrastructure — delivered better unit economics at its target deployment scale. Flexible vendors that support multiple products and protocols retain customers through this kind of strategy evolution; rigid single-product vendors tend to lose them.

What is HW-only procurement, and why did SONAH choose it for its second order? HW-only procurement strips out bundled connectivity, backend services, and support, delivering raw hardware at a lower effective unit cost. Sophisticated customers like SONAH, which already operate their own connectivity infrastructure, backend integration, and support operations, use HW-only pricing because they don't need — and don't want to pay margins on — the bundled services Fleximodo would otherwise include.

What is a 5-year limited warranty excluding battery? A 5-year limited warranty covers the sensor's electronic and mechanical components for five years while excluding the battery, which has a predictable, chemistry-driven lifetime best managed through planned replacement cycles rather than warranty claims. This warranty structure is typically available on larger orders or to established customers with proven deployment practices, and it substantially reduces the operational risk of early-life sensor failure for exterior deployments expected to run for years.

What is automatic temperature compensation, and why does it matter to SONAH's deployments? Automatic temperature compensation is the calibration process Fleximodo's magnetometer-based sensors use to continuously adjust their magnetic-field baseline for ambient temperature. It prevents seasonal heat and cold from being misread as vehicles arriving or leaving — a consideration that applied to SONAH's first-order in-ground Sensor Standard units (rated for -40°C to +85°C operation) and applies equally to the second-order exterior LoRaWAN Sensor Mini units running outdoors year-round under their 5-year warranty.

Why did SONAH keep ordering from Fleximodo instead of switching suppliers? Because Fleximodo supported SONAH's hardware strategy pivot rather than forcing the customer into a single fixed configuration. SONAH's two orders span two different sensor form factors (Standard and Mini), two different connectivity protocols (NB-IoT and LoRaWAN), and two different procurement models (bundled connectivity and hardware only) — all built on the same underlying dual detection technology and the same 99.96% accuracy benchmark. That flexibility let SONAH evolve its deployment strategy between orders while staying with the same sensor supplier, rather than needing to switch vendors to get the product configuration it had learned it actually needed.

---