Best Replacement for ESL 449CST

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Old 07-12-20, 05:24 PM
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Best Replacement for ESL 449CST

What are the best replacement units for 20-year old Sentrol ESL Model 449CST Smoke/Fire Dectectors?

 
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Old 07-13-20, 02:53 PM
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While they do make an updated version of that smoke; my personal preference is the System Sensor 4WB, because it's far easier to mount and wire.

https://www.systemsensor.com/en-us/Pages/4W-B.aspx
 
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