Meters

Supported meters

TestNMeasure reads a Bluetooth multimeter live on your phone. A meter is called supported only after live readings were checked on hardware, on the meter itself or on a model that shares its driver. Any other instrument works today by typing its value, and the report marks it as manual.

iOS and Android, beta this winter.

Meters

“Verified” means live Bluetooth readings were checked on hardware, on the meter itself or on a model that shares its driver. Anything else is listed as drafted until it is.

Meters with live Bluetooth readings
MeterConnectionStatusNotes
OWON OW18BBluetooth LEVerified on hardware3 5/6 digits, True RMS. Live readout, flags, battery.
ZOYI ZT-300ABBluetooth LEVerified on hardwareHandheld, 6000 counts, True RMS.
ZOYI ZT-5566SBluetooth LEVerified on hardwareDesktop meter and Bluetooth speaker, 19999 counts, True RMS.
ZOYI ZT-5BBluetooth LEVerified on hardwareSlim handheld, 6000 counts, True RMS. Live readout.
ZOYI ZT-5BQBluetooth LEVerified on hardwareClamp meter to 600 A AC, 6000 counts, True RMS.
OWON OW18EBluetooth LEDrafted, not yet verified4½ digits, True RMS. Gets its page after its own hardware test.

Brands

  • OWON The BDM Bluetooth multimeter family, the first meters the app reads live.
  • ZOYI Zotek's Bluetooth DMM meters: pocket, handheld, clamp and desktop models.

All supported brands

Any other instrument

A clamp meter, thermometer, insulation tester or gas detector does not need to be on the list. Add it as a manual instrument and type the reading into the same step; typed values are marked manual wherever they appear. Your instrument list keeps every meter by name, so each reading is tied to the instrument that took it.

Try it without a meter

The demo meter is simulated and labelled DEMO everywhere, including exports. It behaves like a real meter, so you can try the whole app before you connect yours.

Other OWON and ZOYI meters

Other meters in the OWON BDM family, and other ZOYI Bluetooth meters, may use the same protocol as the models above and may work. They are not claimed until one has been tested, so we list only the models above. If you have one, tell us.

Request a meter

Which meter do you use? Mail its make and model to support@testnmeasure.app. That is how we choose the next one. In the app, a button to send us the meter's Bluetooth fingerprint, with your consent, is coming, so we can build a driver without owning the meter.

What it does and doesn't do (yet)

What it does
What it doesPlan
Finds supported Bluetooth meters nearby and lists them, with a clear path when Bluetooth or its permission is missing.Free
Tap a result to connect; the meter becomes the active instrument and live readings start.Free
Reconnects to your last meter on launch and after drops, and always shows the connection state.Free
Keeps a list of your instruments with names you choose, so every reading is tied to the meter that took it.Free
A simulated meter lets you try the whole app without hardware; it is labelled DEMO everywhere.Free
Type the reading from any instrument; typed values are marked as manual.Free
Shows the meter's battery, model and firmware where the meter reports them, and warns when its battery is low.Free

Not yet, or not planned

  • One live Bluetooth meter at a time for now; two meters at once (voltage and current, with power) is coming.
  • Can't press the meter's buttons from the phone yet.
  • Can't download the meter's own memory yet.
  • The demo meter is simulated and is labelled DEMO everywhere, including exports.
  • Typed values are marked "manual" in reports.
  • "Request support for this meter" from the app is coming; until then, mail us the make and model.

Questions

Which meters work with TestNMeasure?

Today the OWON OW18B and the ZOYI ZT-5B, ZT-5BQ, ZT-300AB and ZT-5566S are verified, with live Bluetooth readings that match the meter. The OWON OW18E is written up and waits for its own hardware test. Any other instrument works by typing the reading.

Can I use a meter that is not on the list?

Yes, by manual entry. Other OWON BDM and ZOYI meters may also connect, but we do not claim them until one has been tested.

How do I ask for my meter?

Mail the make and model to the address on this page. We choose the next meter from those requests.

OWON is a trademark of its owner; TestNMeasure is not affiliated with or endorsed by OWON. ZOYI and Zotek are trademarks of their owner; TestNMeasure is not affiliated with or endorsed by Zotek.

Coming to iPhone and Android.

iOS and Android, beta this winter.

Questions or a meter to suggest? Mail support@testnmeasure.app.

No ad networks, no sign-up.