EEVblog Not supported Open protocol, no driver yet
EEVblog 121GW
EEVblog 121GW cannot be read live over Bluetooth in TestNMeasure yet. You can use it with the app today by typing its readings by hand; they are marked manual.
iOS and Android, beta this winter.
Status in TestNMeasure
| Brand | EEVblog |
|---|---|
| Model | 121GW |
| Type | Multimeter |
| Link | Bluetooth LE built in |
| State | Not supported Open protocol, no driver yet |
| Reason | Its Bluetooth protocol is documented or decoded by others; the app has no driver for it yet. |
The app cannot read this meter live over Bluetooth. You can still type its readings by hand.
EEVblog 121GW at a glance
| Display | 50,000, dual display with bar graph |
|---|---|
| True RMS | Yes |
| Measures | V DC/AC, A, ohm, capacitance, Hz, temp, LoZ, min/max, 1 ms peak, diode |
| Safety rating | CAT III 600 V |
| On the market since | 2018 |
| Availability | On sale |
| The maker's own app | iPhone, Android, Windows |
Sources: Product page · Manual · read 3 November 2026
Use it with TestNMeasure today
Add it as a manual instrument and type each reading into the same step. Typed values are marked manual wherever they appear, in reports too.
Want it read live? Ask us to add it We choose the next meter from these requests.
Questions
Does the EEVblog 121GW give live readings in TestNMeasure?
No. Its Bluetooth protocol is documented or decoded by others; the app has no driver for it yet. So the 121GW does not give live readings in the app yet.
Can I use the EEVblog 121GW with TestNMeasure today?
Yes. Add it as a manual instrument and type each reading into the same step; typed values are marked manual wherever they appear. Your instrument list keeps it by name.
How do I ask for the EEVblog 121GW to be added?
Use the “Ask us to add it” link on this page and we get the make and model. We choose the next meter from these requests.
EEVblog is a trademark of its owner; TestNMeasure is not affiliated with or endorsed by EEVblog.
Coming to iPhone and Android.
iOS and Android, beta this winter.
Questions or a meter to suggest? Mail support@testnmeasure.app.
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