PFEIFFER VACUUM TPR 280 Compact Pirani Gauge Sensor PTR26950A **AS ISPfeiffer Vacuum TPR 280 Compact Pirani Gauge Sensor PTR26950A The Pfeiffer TPR 280 is a compact Pirani gauge sensor engineered for accurate lowtomedium vacuum pressure measurement. Using thermal conductivity sensing technology, it delivers stable and repeatable readings across a wide pressure range, making it ideal for laboratory systems, industrial vacuum processes, and equipment monitoring. Key Specifications Model: TPR 280 Part Number: PTR26950A