The APM 135 differential manometer with standard boot is a professional pressure measurement tool engineered for HVAC, boiler, combustion and fluid-system diagnostics where accurate differential pressure readings are required. This handheld manometer measures the pressure difference between two points—such as across filters, heat exchangers, pumps or airflow systems—and displays the results clearly to help engineers assess performance, balance systems, and confirm correct operation during servicing, commissioning or fault finding.

Built with everyday trade use in mind, the APM 135 offers a practical measurement range suitable for central heating, flue draft checks, pump head verification and similar applications. The standard protective boot enhances durability and grip, helping shield the instrument from knocks and drops on site. Simple operation and a clear display make it easy to read and interpret results quickly, while lightweight construction improves portability.

Key features of the APM 135 differential manometer include a clear, easy-to-read display for precise pressure difference readings, a measurement range suited to hydronic and combustion system diagnostics, a protective standard boot for added durability and grip, and dependable performance when used by qualified engineers and technicians for pressure checks, system balancing and commissioning tasks.