Testo 0638 1742 Oil Pressure Probe

Brand: Testo

SKU: 0638-1742

The Testo 0638 1742 is an oil pressure probe measuring 0 to 25 bar (0 to 360 psi) with a ¼” SAE connection. Rugged and with a 2.9 m cable, it is designed for checking oil pump pressure on oil-fired heating systems.

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Description

Overview

The Testo 0638 1742 is an oil pressure probe for measuring relative pressures from 0 to 25 bar (0 to 360 psi), primarily used to check oil pump pressure on oil-fired heating systems. It features a ¼” SAE (7/16″ UNF) connection, a robust housing and a long 2.9 m cable, along with a 50 bar overload rating to protect the sensor. Connected to a compatible testo instrument, it makes burner service and commissioning fast and reliable.

Key Features

Oil pressure measurement from 0 to 25 bar (0 to 360 psi)
Standard ¼” SAE (7/16″ UNF) connection
High 50 bar overload protection
Long 2.9 m cable for convenient positioning
Robust housing for burner and heating service work

Applications

Oil pump pressure checks on oil-fired heating systems
Burner service and commissioning
Heating system diagnostics and maintenance
Industrial oil pressure monitoring

What’s in the Box

1 x Testo 0638 1742 Oil pressure probe

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

PARAMETER	SPECIFICATION
Order no.	0638 1742
Type	Oil pressure probe
Measuring range	0 to +25 bar rel. (0 to +360 psi)
Accuracy	1.5 % of full-scale value
Resolution	0.01 bar / 0.1 psi
Probe connection	¼” SAE (7/16″ UNF)
Overload (relative)	50 bar (725 psi)
Cable length	2.9 m
Dimensions	120 x 29 x 38 mm
Product colour	Grey
Weight	245 g

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1 review for Testo 0638 1742 Oil Pressure Probe

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mohammadjasem – October 20, 2025

Rated 5 out of 5
The TESTO 0638 1742 probe has been incredibly reliable for accurate oil pressure measurements, surpassing my expectations!

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