Home / Test Instruments / Air Flow / Ventilation Instruments / Differential Pressure Differential Pressure Sort: Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A 2 Products Sort Testo 420 - Differential Pressure Measuring Instrument Testo 420 - Differential pressure measuring £641.75 £770.10 (inc. VAT) £906.00 Testo 420 - Differential Pressure Measuring Instrument Testo 420 - Differential pressure measuring £641.75 £770.10 (inc. VAT) £906.00 View Product Testo 510 Differential Pressure Meter £114.75 £137.70 (inc. VAT) £162.00 Testo 510 Differential Pressure Meter £114.75 £137.70 (inc. VAT) £162.00 View Product