Testo 0638 1545 Pressure Probe 100 hPa

Brand: Testo

SKU: 0638-1545

The Testo 0638 1545 is a 100 hPa differential pressure probe for measuring differential pressures and, with a Pitot tube, flow velocities. With ±0.1 hPa accuracy in the low range and a 200 hPa overload rating, it works with Prandtl (Ø 7 mm) and straight (Ø 8 mm) Pitot tubes.

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Description

Overview

Use the Testo 0638 1545 pressure probe to determine differential pressures and, in combination with a Pitot tube, flow velocities. Its piezoresistive sensor covers 0 to +100 hPa with ±0.1 hPa accuracy in the low range and a 200 hPa overload rating. Both Prandtl Pitot tubes (Ø 7 mm) and straight Pitot tubes (Ø 8 mm) can be used for flow measurement, and the 1.5 m cable makes positioning at the measuring point easy.

Key Features

Differential pressure range 0 to +100 hPa
High ±0.1 hPa accuracy in the low pressure range
Flow velocity measurement in combination with a Pitot tube
Compatible with Prandtl (Ø 7 mm) and straight (Ø 8 mm) Pitot tubes
200 hPa overload protection for the sensor

Applications

Differential pressure measurement in ducts and systems
Flow velocity determination with a Pitot tube
Ventilation and air conditioning airflow checks
Filter and system pressure monitoring

What’s in the Box

1 x Testo 0638 1545 Pressure probe 100 hPa

Why buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is a trusted supplier of Testo test and measurement equipment in the UAE. We offer genuine products, competitive pricing, and reliable local support across Dubai, Abu Dhabi, Sharjah and the wider Emirates. Download the datasheet

specifications

Differential Pressure – Piezoresistive

Measuring range	0 to +100 hPa
Accuracy	±0.5 % of mv (+20 to +100 hPa) ±0.1 hPa (+1 to +20 hPa)
Overload	200 hPa

General technical data

Operating temperature	0 to +50 °C
Cable length	1.5 m
Storage temperature	-20 to +70 °C

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1 review for Testo 0638 1545 Pressure Probe 100 hPa

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mohammadjasem – October 20, 2025

Rated 5 out of 5
The TESTO 0638 1545 delivers precise pressure readings up to 100 hPa; it’s a game-changer for my lab work!

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