Altronix SMP3 - Auxiliary Power Supply Reviews

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Fantastic Power Supply
Submitted on 01/22/2020 Alarm Grid

The Altronix SMP3 is a 2.5A power supply that can be configured for a 6VDC, 12VDC, or 24VDC power output. The device is used to power external alarm devices when the alarm panel lacks sufficient power to do so on its own. The Altonix SMP3 also includes a charging circuit that is used to charge a connected backup battery. Overall, we think this is an excellent power supply module that can be reliably used when alarm equipment requires a substantial amount of additional power beyond what an alarm control panel can offer on its own. We give the Altronix SMP3 a 5-Star rating.

There are many positive aspects regarding the Altronix SMP3 to discuss. The selectable power output of 6VDC, 12VDC, or 24VDC is a nice addition. We also really appreciate the charging circuit for keeping the device's backup battery nice and charged. The LED lights on the unit are helpful for letting the user know that the device is working properly, and they can be used to assist with troubleshooting. And since this device provides up to 2.5A of power, it will provide sufficient power for most security setups.

But there are some downsides that should be mentioned regarding the Altronix SMP3 as well. The device needs its own power transformer, and it cannot share a transformer with a panel. No backup battery comes included, so you will want to add one separately. The transformer required will depend on which selectable power output you use, and you will need a very powerful transformer for a 24VDC configuration. But these downsides are relatively minor, and they do not change our favorable opinion regarding the Altronix SMP3. For that reason, the Altronix SMP3 gets a 5-Star rating from Alarm Grid.

Good: Selectable Power Output, Battery Charging Circuit, LED Lights, Up to 2.5A of Power

Bad: Needs Own Transformer, No Backup Battery Included, 24VDC Output Requires Powerful Transformer

Bottom Line: 5 Stars