# Meteor for 121GW — BLE Multimeter App

> Bluetooth multimeter control and data display app. (iPhone/iPad app by Western Computational, Inc..)

- Source: https://appshunter.io/ios/app/meteor-for-121gw/id1452124710 (this page in markdown: same URL + `.md`)
- Developer: [Western Computational, Inc.](https://appshunter.io/developer/357998892)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.67/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 22 MB
- Languages: English
- Released: 2019-03-22
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/meteor-for-121gw/id1452124710/reviews.md

## What is Meteor for 121GW?

Meteor is an indie, third-party* app for use with the EEVBlog 121GW Bluetooth-LE multimeter.  It performs most of the same functions as the EEVBlog app, but adds some new features:

+ Control buttons available in landscape mode
+ Option for spoken measurements (using iOS voice synthesizer)
+ Option for continuity buzzer
+ Dark mode option
+ Connect/disconnect button and disconnect-status labels

There are, however, a couple of features missing from the EEVBlog app:

- Does not yet support multiple meters  
- No math mode for multiple meters

This is a public beta, designed to get as much feedback and testing from 121GW users as possible.  While I believe any public version is as bug-free as possible, please be aware that this is beta software and should not be relied on for critical uses until actual v1.0 release.

At app startup, you should see a page listing any 121GWs that are advertising near you.  Or, at any time you can tap and hold the meter icon at the bottom-left of the main screen to bring up the meter-scan page.  (This page is also available from the app menu, which you access through the button at the bottom-right of the main screen.)

The meter icon at the bottom-left of the screen should turn blue when you are connected to a meter.  If you don't get any readings from the meter, please try tapping the meter button once to disconnect, and then again to reconnect.  

If you tend to switch between an iPhone and iPad, or between two phones, you may find that it's easier to establish a new connection by turning the meter itself off and back on, and/or turning the meter's BT off and back on.

* Love it or hate it, Meteor was not produced, endorsed, or licensed by EEVBlog.  Please do not contact EEVBlog for support - instead email support@westerncomputational.com with any bugs, help requests, and feature suggestions.  Thanks!

## Key features

- Landscape mode control buttons
- Spoken measurement readings
- Continuity buzzer option
- Dark mode support
- Connect/disconnect functionality

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/meteor-for-121gw/id1452124710/reviews.md

### 4/5 — Pretty slick connects fast but data isn’t reliable and slow update speed

*2024-08-17, version 0.2*

Played with this for 15 min. Noticed the hertz range is often wrong compared to the meter display and compared to the true value on my frequency gen. Especially when numbers start with 5-6 or 7.

### 5/5 — Excellent

*2022-02-25, version 0.2*

Excellent, thank you for releasing this!

## Frequently asked questions about Meteor for 121GW

### What is Meteor for 121GW?

Meteor for 121GW is a third-party app designed to work with the EEVBlog 121GW Bluetooth-LE multimeter. It allows users to control the multimeter and view its readings on their iOS devices.

### What features does Meteor for 121GW offer?

Meteor for 121GW offers control buttons in landscape mode, spoken measurement readings, a continuity buzzer option, dark mode, and connection status indicators. It aims to provide an enhanced user experience compared to the official app.

### What features are missing in Meteor for 121GW?

Currently, Meteor for 121GW does not support multiple meters simultaneously or a math mode for multiple meters. These features are planned for future releases.

### Is Meteor for 121GW suitable for critical measurements?

This application is currently in public beta and should not be relied upon for critical uses until the official v1.0 release. It is designed for feedback and testing from users.

### How do I connect Meteor for 121GW to my multimeter?

At startup, the app lists nearby 121GW devices. You can also tap and hold the meter icon at the bottom-left to scan for meters. The meter icon turns blue when connected.

### What devices does Meteor for 121GW support?

Meteor for 121GW is available for iPhone, iPad, and iPod. It is compatible with iOS devices.

### How often is Meteor for 121GW updated?

The app was last updated on February 26, 2020, with version 0.2. As a beta application, updates will be released based on user feedback and development progress.

### Does Meteor for 121GW have ads?

No, Meteor for 121GW does not contain advertisements. It is a free application without any in-app purchases or ad support.

## Version history (last 2 releases)

### 0.2 — 2020-02-26

Version 0.2 of the Meteor for 121GW beta adds some important features:

• Continuous data logging of measurements received while app is connected to the meter
• Option for "System" format for more legible numeric view
• Dark Mode now automatically set by system setting (iOS 13 or later, in Settings, Display & Brightness, Appearance)
• Support for long-press on app's Hold, Mode, Rel and Range buttons
• Bug fixes and performance improvements

Version 0.2 of Meteor now logs every measurement your 121GW takes while it's connected over BLE.  The samples are stored in a new data set each time you select a mode on your meter, and the data sets can be exported to your computer or sent via email or text message.  You can limit the number of samples, or turn off logging completely, using the App Settings menu.  The app will delete any samples over the limit starting with the oldest samples first.  You can "Pin" data sets to prevent them from being automatically deleted, and manually delete individual sets, by swiping to the left in the data-set listing.

### 0.1 — 2019-03-19

No release notes.

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## More apps by Western Computational, Inc.

- [SecondCam](https://appshunter.io/ios/app/secondcam/id1528636968)

All apps by Western Computational, Inc.: https://appshunter.io/developer/357998892

## Related topics

[eevblog 121gw](https://appshunter.io/ios/topics/eevblog-121gw) · [eedm596f](https://appshunter.io/ios/topics/eedm596f)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*
