The Testo 865s is a high-performance, entry-level thermal imaging camera designed for professional engineers who require reliable thermal diagnostics without the complexity of advanced models. Ideal for heating engineers, electricians, facility managers, and HVAC technicians, the 865s delivers crisp, accurate thermal images that make fault-finding fast, clear, and efficient.

With intuitive controls, a robust design, and essential thermal imaging features such as Testo’s ScaleAssist and IFOV Warner, this camera ensures precise measurements and easy interpretation—even for users new to thermography.

Key Features:

• High-quality thermal imaging with sharp, detailed resolution

• Perfect for identifying heat loss, insulation issues, leaks & electrical faults

• Testo ScaleAssist for automatically optimised thermal images

• IFOV Warner ensures correct distance-to-spot ratio

• Fast, user-friendly operation—ideal for daily professional use

• Rugged, ergonomic design built for field environments

• Stores images quickly for documentation and reporting

Suitable For

• Heating system diagnostics

• Detecting pipework, underfloor heating & hidden leaks

• Electrical inspections & overload detection

• Building fabric assessments & insulation checks

• HVAC commissioning and troubleshooting

• Facility management & preventative maintenance