Observed arrival · 2026-11-05

The DIY SCUBA Regulator Tester

regulatortester.com Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

A build guide for a compact instrument that measures second-stage regulator cracking pressure and records breathing tests.

Landing page captured for the 2026-11-05 issue.

For: SCUBA technicians and DIY regulator service builders
Worth noticing: The build specifies a LilyGO T-Display-S3 board, Sensirion SDP810-500Pa sensor, and v0.14 printable housing.

Field notes

The parts list names a LilyGO T-Display-S3 board and a Sensirion SDP810-500Pa sensor, with controls on GPIO1 and GPIO2. Builders are directed through matching v0.14 case files, soldering, bench checks, and local activation using the board's Device ID. The page describes offline use through the display or local web interface, with charts and CSV, raw-record, or printable-report exports. The €25 licence is separate from hardware and printing.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

One card from the complete issue

The Rescue Mosaic

365,038 arrived 1,000 judged 978 catalogued Enter the complete issue