If you’ve ever designed an industrial system around Raspberry Pi and then hit a wall at the certification stage, you know the pain: great prototypes, solid performance — and then months of compliance work before you can ship into a regulated North American market. That gap is exactly what Strato Pi CM was designed to close. And today, it closes it a step further.

Sfera Labs is pleased to announce that Strato Pi CM and Strato Pi CM Duo are now UL Listed for the United States and Canada, certified as Process Control Equipment under UL 61010-1 (3rd Edition) and CSA C22.2 No. 61010-1 (Edition 3), UL file E526642. Combined with existing CE marking, FCC and IC compliance, these platforms now carry a full compliance profile covering both European and North American markets.

Built for Where Raspberry Pi Meets the Real World

Strato Pi CM is a compact, DIN-rail-mountable industrial server built around the Raspberry Pi Compute Module. It’s designed for one thing above all: continuous, unattended operation in demanding environments. Here’s what sets it apart.

Compact form factor, serious hardware Strato Pi CM packs a production-grade industrial platform into a compact enclosure that fits naturally into control cabinets and edge installations. No compromises on footprint, no compromises on reliability.

Two software-controlled USB ports give you the ability to to power-cycle connected peripherals — modems, USB hubs, dongles — programmatically. Essential for unattended deployments where you can’t physically intervene.

Fast Ethernet 10/100 Mbps Ethernet connectivity.

Real-Time Clock (RTC) A highly accurate, temperature compensated battery-backed RTC keeps accurate time even through power outages. Critical for scheduled operations, accurate event logging, and any application where timestamps matter.

Secure Element chip Hardware-level security for key storage and device authentication — the right foundation for IIoT deployments that need to meet modern security requirements without relying solely on software solutions.

Hardware watchdog An autonomous hardware watchdog monitors the system and triggers a recovery cycle if the software becomes unresponsive. No human intervention needed. Your system gets itself back up.

RS-485 serial interface Native RS-485 connectivity for integration with field devices, sensors, and industrial equipment via Modbus and other serial protocols — the backbone of industrial automation.

Strato Pi CM Duo: All of the Above, Plus Redundant Storage

The CM Duo adds a dual microSD architecture that takes unattended operation to the next level. Two independent storage slots enable:

  • Redundant storage — if one card fails, the system keeps running from the other.
  • Hot in-field updates with rollback — deploy a new system image to the inactive slot, switch over, and roll back instantly if anything goes wrong. No downtime. No on-site engineer.

For remote installations, mission-critical infrastructure, or any deployment where a failed update means an expensive truck roll, the CM Duo’s dual-SD approach is a game changer.

What UL Listing Means for Your Project

UL Listing isn’t just a mark on a label. When you incorporate a UL Listed subassembly into your finished product, it materially reduces the testing and documentation burden for your own product certification. That means faster time-to-market and lower compliance costs — especially relevant for OEMs building equipment for North American industrial, energy, or building automation markets.

Strato Pi CM and CM Duo are now compliant for deployment in:

  • Industrial automation and process control systems
  • Building and energy management infrastructure
  • Data acquisition and edge computing installations
  • OEM embedded solutions requiring certified platform components.

From Prototype to Production — Without a Hardware Redesign

As Ulderico Arcidiaco, CEO of Sfera Labs, puts it: “Our customers can now move from proof-of-concept to certified production systems for the North American market without redesigning around a different hardware platform.”

That’s the point. You built your system on Raspberry Pi because it works. Now the platform you deploy it on is certified.

Strato Pi CM and Strato Pi CM Duo with UL markings are available now from the Sfera Labs online store.

UL certification details can be verified on UL Product iQ® under file E526642.