The NetGuardian DX G4 Expansion Units are low-cost, self-contained devices that provide compatible NetGuardian series remotes with an additional 48 ground-activated discrete alarms. With NetGuardian DX expansions, your NetGuardian RTU can scale to the needs of your site, so you don't have to deploy new RTUs as your needs grow. Daisy-chain to 3 NetGuardian 832A DX expansion units to your compatible NetGuardian RTU, to increase your capacity by 144 discrete points.
The NetGuardian DX G4 allows you to greatly expand your NetGuardian 420's discrete alarm capacity. Add up to three expansion units to your NetGuardian 420 for a total of 164 discrete points. These expansion shelves add flexibility when you have a site that grows unexpectedly. You can add shelves where you need them.
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