Commercial relationship
The team behind HVAC Leak Check is associated with a business selling measurement instruments. That relationship can influence our choice of topics and the instruments available to us. Readers should take this commercial interest into account when using our references. Product coverage is based on the documentation cited on each page.
Links and commercial content
This version contains no purchase buttons, affiliate links, paid rankings or sponsored placements. Links to manufacturers and retailers identify technical sources; they are not sales recommendations. A supplier’s own page may contain a shop.
Evidence and disclosure
The instrument profiles describe manufacturer documentation and do not report our own physical tests. Any sample provision, sponsorship or affiliate arrangement relevant to published content will be disclosed on the affected page. See our evidence and review policy for the scope of our source-based explanations.