Replace 330L smoke detector
> My home has smoke alarm installed by builder in 1990. There are 3 alarms
> which I believed are connected together. The model is Dicon 330L which I
> believed is no longer available by searching the internet. And, they
> recommended to search your company's replacement product.
Yes, the 330L was discontinued a long time ago and at this point all of your detectors are well beyond their expected life span and need to be replaced. You can consider using a combination of 9120BA smoke detectors and SC9120BA Smoke/CO combination detectors. You will need to replace both the mounting bracket(two screws) and the wiring harness/plug (connected by MAR connectors to your 120V wiring. The new detectors include both a mounting bracket and correct wiring plug.
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