City & Guilds ApprovedĀ 

Exclusive UK Distributor for Oksys & CTR

Diagnostic Sight Glass for R1234YF Systems

Diagnose R1234YF A/C system condition and verify filter impurities. Includes carry case.
Price (Exc. VAT)

£99.95

£119.94 inc. VAT

Out of stock

Technical Specifications

Every Detail,
No Compromises

We only choose products that meet our high, exacting standards and the demands of professional workshops. Full specification below, with no missing values or vague claims.

Type

Professional workshop accessory

Application

Automotive A/C systems

Compatibility

As per product listing

Condition

New, ready to use

Grade

Professional / trade
Attribute Name

Value

Additional information

Refrigerant Type

R1234yf

Contents

HP Coupler, HP Hose, LP Coupler, LP Hose, Pyrex One Oil Checker, Carry Case

Application

A/C system diagnosis and contamination detection

The Right Tool For Every Job

Diagnostic Sight Glass for R1234YF Systems — Workshop Essential

The Diagnostic Sight Glass for R1234YF Systems is a trusted workshop accessory designed to support professional A/C servicing. Built to last and easy to use.

Professional Quality

The Diagnostic Sight Glass for R1234YF Systems is manufactured to professional workshop standards, designed for regular, demanding use.

Wide Compatibility

Suitable for use across a wide range of automotive A/C systems and vehicle types.

Ready to Use

The Diagnostic Sight Glass for R1234YF Systems requires no complex setup — simply pick up and use as part of your regular A/C servicing process.

Workshop Trusted

Used by professional workshops throughout the UK, the Diagnostic Sight Glass for R1234YF Systems is a reliable addition to any A/C service toolkit.
Product Overview

What do you need to know about the Diagnostic Sight Glass for R1234YF Systems

  • Real-time A/C system condition monitoring while the system operates — no disassembly needed
  • Diagnoses humidity, leak stop presence, oil separation, contaminated lubricant, and debris
  • Early fault detection prevents small issues becoming expensive system failures
  • Specifically designed for R1234yf systems — the correct tool for modern vehicles
  • Quick and simple diagnosis to confirm system integrity before and after service
Training & Support

We're With You Long After Delivery

AP Auto doesn’t just supply the machine — we support your team through setup, certification, and ongoing servicing. As part of the AP Air Group, we operate a City & Guilds approved training centre delivering F-gas and mobile air conditioning courses at your premises or ours.

UK Technical Support

Our specialists are on hand to help — call 01453Ā 796905 or email sales@apauto.co.uk. Real people, real answers.

F-Gas & MAC Training

City & Guilds approved F-gas and mobile A/C training — at your premises or ours. Keep your team compliant and skilled.

Common Questions

Frequently Asked Questions

Technical questions from technicians and workshop owners. If yours isn’t here, our team will answer it directly.

The Diagnostic Sight Glass for R1234YF Systems is a professional workshop tool designed for use in automotive A/C servicing. Please refer to the full product description for detailed application information.
Please refer to the product listing for the full compatibility details of the Diagnostic Sight Glass for R1234YF Systems.
Yes — the Diagnostic Sight Glass for R1234YF Systems is supplied ready for immediate use. Any included accessories or consumables are detailed in the product listing.
The Diagnostic Sight Glass for R1234YF Systems is covered by a standard manufacturer’s warranty. Contact us for full terms and conditions.
Yes — the Diagnostic Sight Glass for R1234YF Systems is professional grade, designed for regular workshop use.
Spare parts and replacement consumables for the Diagnostic Sight Glass for R1234YF Systems are available from our range. Please contact us for availability.
Ready to Upgrade Your Workshop?

Equip Your Workshop with the Diagnostic Sight Glass for R1234YF Systems

Talk to the AP Auto team today. We’ll help you choose the right machine, arrange F-gas training, and get you set up with all the consumables you need, all backed by our 3-year warranty and UK-based technical support.

Frequently Asked Questions

Technical questions from technicians and workshop owners. If yours isn’t here, our team will answer it directly.

4.9

62 Reviews

Mark T.Independent Workshop, Leeds
"Upgraded from an older machine — the difference is night and day. Fully automatic means my apprentice can run it without supervision. Haven't had a single issue in eight months."
Sarah KMain Dealer, Bristo
"AP Auto's team were brilliant from the first call right through to installation and follow-up. The machine itself has been faultless for 18 months — exactly what a main dealer needs."
James R.Fleet Workshop, Birmingham
"Best investment in the workshop this year, without question. EV-ready straight away, which is exactly what we needed as our fleet is transitioning. Would recommend without hesitation."

Join hundreds of UK workshops that trust AP Auto for their A/C service equipment.

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