Square Robot SR-3 and Side Launcher C1D2 and C1D1 Certified and FM Approved

Square Robot, Inc., a global leader in robotic tank inspections, has formally received the NEC/CEC Class I Division 2 (C1D2) certification for its SR-3 submersible robot and the NEC/CEC Class I Division 1 (C1D1) certification for its Square Robot's Side Launcher.

Boston, MA and Houston, TX - January 29, 2025- After much anticipation, Square Robot, Inc., a global leader in robotic tank inspections, has knocked down two more barriers for its onstream, robotic tank inspections. The SR-3 submersible robot has formally received the NEC/CEC Class I Division 2 (C1D2) certification and Square Robot's Side Launcher has received the NEC/CEC Class I Division 1 (C1D1) certification.


The C1D2 and C1D1 certifications were issued by third-party Nationally Recognized Test Lab, FM Approvals, proving our systems safe for use in hazardous locations. As part of the operating methodology for launching into floating roof tanks, often containing low flashpoint products, the Side Launcher's C1D1 certification confirms the safe deployment and retrieval of the SR-3 robot in these environments. The SR-3 robot and Side Launcher became commercially available in the fall of 2023, after completing initial milestone testing in partnership with ExxonMobil.

These certifications expand Square Robot's service portfolio, allowing it to tackle a market that was previously only available for inspections by taking the tank offline. The combination makes Square Robot the first robotic company to safely inspect a new group of low flash point product tanks - the full list of which can be found here.

"Our customers have been eagerly awaiting the certifications since our witness testing in 2024. With the C1D2 and C1D1 stamps now in hand, it opens up a new group of tank candidates available for robotic tank inspections. We're proud to be pioneers in this industry, and continue to develop new technology based on our clients needs" - John Hazel, Vice President, Operations & Chief Inspector.

About Square Robot, Inc.

Square Robot, Inc. is a US-based robotics technology company specializing in submersible robotic inspections of above-ground storage tanks. With a mission to keep tanks online, eliminate confined space entry, contain the release of emissions, and increase operational efficiency while delivering high-fidelity data, Square Robot deploys its robotic fleet and best-in-industry team to deliver storage tank inspections across the globe.

Featured Product

3D Vision: Ensenso B now also available as a mono version!

3D Vision: Ensenso B now also available as a mono version!

This compact 3D camera series combines a very short working distance, a large field of view and a high depth of field - perfect for bin picking applications. With its ability to capture multiple objects over a large area, it can help robots empty containers more efficiently. Now available from IDS Imaging Development Systems. In the color version of the Ensenso B, the stereo system is equipped with two RGB image sensors. This saves additional sensors and reduces installation space and hardware costs. Now, you can also choose your model to be equipped with two 5 MP mono sensors, achieving impressively high spatial precision. With enhanced sharpness and accuracy, you can tackle applications where absolute precision is essential. The great strength of the Ensenso B lies in the very precise detection of objects at close range. It offers a wide field of view and an impressively high depth of field. This means that the area in which an object is in focus is unusually large. At a distance of 30 centimetres between the camera and the object, the Z-accuracy is approx. 0.1 millimetres. The maximum working distance is 2 meters. This 3D camera series complies with protection class IP65/67 and is ideal for use in industrial environments.