The Bacharach MGS-400 App allows users to configure, maintain and interface with compatible MGS-400 gas detectors. Once a Bluetooth connection has been established, the app replaces the need for specialty training/tools and makes compliance with safety standards (ASHRAE 15, EN 378) easy and effective.

Features include:
- Configuration (Rename device, define alarm thresholds, adjust Modbus settings,
configure relay behavior and manage analog output settings.)
- Maintenance (Test LED/buzzer function, relays, and analog output level.)
- Calibration (View sensor type, serial number and “Calibration Due” timer and initiate zero / span calibrations with customizable field calibration certificate.)
- Intuitive Interface (View current gas measurement and acknowledge alarm / fault status.)

What’s New

Version 1.2.0

Bug fixes :
- Representation of measured values in %Vol and % Lel

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

bbgunshow ,

Great App

Very easy to configure and test devices with app(really the only way). User friendly!

App Privacy

The developer, Bacharach, Inc, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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