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Field loop meter
Idea“A rugged handheld meter that checks 4-20 mA sensor loops and logs every reading to my phone.”
It goes in series with a 4-20 mA sensor loop through two 4 mm sockets on top, shows the current on a small screen and is built to send each reading to your phone over Bluetooth. An orange rubber bumper, a ribbed grip and a lanyard pin are there for work up a ladder, and it charges from USB-C under a rubber plug.
Pre-orderPre-orders aren't open yet. This adds you to the waitlist for this product, and nothing is charged.
See it come apart
One turn around the design, while its parts move apart and go back together. Rendered from the design files, like the 3D view above. It isn't footage of a real unit.
Product facts
- Size
- 75 × 165 × 35 mm
- Board
- 50 × 144 mm, 4 layers
- Parts on the board
- 76
- Board checks
- Electrical rules, routing and manufacturing passed
- Fit check
- No overlaps
From the design files, November 2026.
What isn't done yet
- It has no fuse yet, because our parts library has none. Leads placed across 24 V would burn parts.
- Its key stems stop short of the real switches, so the keys need another pass.
- No firmware has been written for it, and no unit has been built.
Inside it
Want one?
Pre-orders aren't open yet. Join the waitlist, and we'll tell you when they are.
