# RadMeter

> Your smartphone becomes a professional Geiger counter!

Canonical page: [https://chrome-stats.com/d/com.optivelox.radmeter](https://chrome-stats.com/d/com.optivelox.radmeter)

## Overview

- **ID:** `com.optivelox.radmeter`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Optivelox
- **Category:** TOOLS
- **Downloads:** 143,326
- **Rating:** 3.52 / 5 (407 ratings)
- **Version:** 5.0
- **Last updated:** 2026-05-14
- **First published:** 2015-06-05
- **Publisher country:** IT
- **Size:** 6.68 MB
- **Data as of:** 2026-09-08
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.optivelox.radmeter)
- **Website:** [http://optivelox.50webs.com](http://optivelox.50webs.com/)
- **Privacy policy:** [http://optivelox.50webs.com/app\_en/privacy-policy.htm](http://optivelox.50webs.com/app_en/privacy-policy.htm)

## Description

RadMeter is an innovative Chrome extension that converts your smartphone into a powerful and professional Geiger counter. Compatible with common silicon and Geiger tube sensors like SS05, BPW34, SBM-20, and more, it measures radiation dose rates, activity levels, and radon gas concentrations. Users can also define and add custom sensors to the internal database for enhanced flexibility.

With GPS tracking enabled, RadMeter automatically pairs radiation measurements with precise location data and generates KML files for seamless mapping on Google Earth. The extension features real-time graphs with zoom capabilities, adjustable detector thresholds, radiation alarms, and exports data in CSV and KML formats. Its user-friendly interface supports multiple languages and includes a comprehensive manual, making radiation monitoring accessible and efficient for professionals and enthusiasts alike. Please note, an external sensor connection is required for accurate measurements; otherwise, the app uses the phone's internal microphone for demonstration purposes.

## Rankings

- #186,551 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_UPDATES`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.CHANGE_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.RECORD_AUDIO`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.google.android.gms.permission.AD_ID`

## Review summary

RadMeter is praised for external-sensor support and CPM-based monitoring, with updates and sensor versatility. However, many reviews warn it only works with external Geiger counters and may produce inaccurate readings without proper calibration. Sensor selection and calibration are key, and some users view the readings with skepticism or deem the app misleading. Overall, it serves as a sensor-to-app bridge rather than a standalone radiation meter.

### Pros

- Works with external Geiger counters/sensors (external device required).
- Useful for statistical monitoring with CPM data and graphs.
- Supports multiple sensors (e.g., SBM-20, SBT11) and external kits.
- Ongoing updates and sensor customization options.
- Relatively simple interface for sensor data visualization.

### Cons

- Requires external hardware to function; cannot measure radiation with the phone alone.
- Readings can be inaccurate or misleading without proper calibration.
- Calibration and correct sensor identification are necessary for reliable results.
- Some users perceive the app as scammy or misleading due to erroneous readings.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.optivelox.radmeter)