Martindale TL178 Null Pin on key fob
- Information
- Key spec
- Comparison
- Accessories
This handy null pin is used to null out lead resistance of the Earth Bond Lead supplied with Martindale’s H-PAT 500 and 600 for accurate earth bond readings when testing. It can be used with any PAT tester with lead-nulling capabilities.
Ideal for use with HPAT 500 / HPAT600
Compatability:
Can be used with any PAT tester with lead nulling capabilities
Full product specification can be found in the product manual or by contacting our team here
EAN: 5036162000690
Meet the NEW HPAT425 hand-held PAT tester
Joining our trusted HPAT Series, our latest handheld PAT tester can be used for testing all types of portable appliances and is specifically built for ease of use with one-button automatic testing. The new and improved HPAT425 replaces the popular HPAT400 model.
Find out moreTest your knowledge with our PAT testing quiz
Think you’re a PAT testing buff? Test your knowledge with our PAT testing quiz – it’s 20 questions, multiple choice – good luck!
Learn more about PAT QuizAdded to basket
Technical support
If you have questions related to Martindale products, please check our FAQ sections on our product pages, where the most common enquiries are answered.
Should you require further help please do not hesitate to contact the Martindale support team using the telephone number or email address below or complete the online form.
"*" indicates required fields








