Square Robot Secures Certification For High Temperature Inspection Robot

September 8, 2025 by Mai Tao

Square Robot , a specialist in robotic tank inspections, has developed its newest high temperature inspection robot, the SR-3HT, formally receiving the NEC/CEC Class I Division 2 (C1D2) certification.

The SR-3HT is now commercially available and capable of inspecting above-ground storage tanks where the product storage temperatures range from -10°C to 55°C (14°F to 131°F).

The C1D2 certification was issued by FM Approvals, a third-party Nationally Recognized Test Lab, confirming the system safe for use in hazardous locations.

This certification and the expanded capabilities of the SR-3HT provides a solution to tank owners needing onstream robotic tank inspections for tanks with products stored at elevated temperatures sitting outside of Square Robot's previous operating range: 0°C to 40°C (32°F to 104°F).

David Lamont, CEO of Square Robot, says:“Our Engineering team developed the SR-3HT in response to significant client demand in both the US and international markets.

“We frequently encounter higher temperatures due to both elevated process temperatures and high ambient temperatures, especially in the hotter regions of the world, such as the Middle East.

“The SR-3HT employs both active and passive cooling technology, greatly expanding our operating envelope. A great job done (again!) by our Engineers delivering world leading technology in record time.”

The SR-3HT builds on a growing portfolio of robotic excellence at Square Robot as the seventh certified model variant.

Beginning with the C1D2 SR-1 inspection robot, followed by the SR-3 robot and the Side Launcher system – certified to C1D1 earlier this year, Square Robot is proud to continually expand its robotic fleet.

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