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System Sensor 2WT-B Two Wire Smoke Detector With Built-In Heat Sensor
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QUESTIONS & ANSWERS
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I have A System Sensor 2WT-B device. Why is it beeping at regular intervals
The Q&A format here is not the best for technical issues, but I would recommend checking the LED status of the smoke detector using the chart outlined in the manual here. It will likely provide some insight: System Sensor 2W smoke manual
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can you tell me the difference between this (2WT-B) and the 2WTA-B?
The 2WT-B detector is a smoke and thermal (heat) detector, and the 2WTA-B is a smoke and thermal detector with a built in sounder meaning it produces sound when it is triggered.
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I have a couple of 2W-B sensors that are fourteen years old, and I want to replace them with the 2WT-B smoke/heat detector. The mounts are the same 2 wire type, so can I just change out the sensors and leave the original mounts in place?
I would assume so, but I can't say with any certainty because I don't know if they've changed over the last 14 years or not. I can tell you the current generation 2WB mounts are the same as the 2WTB.
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Will these work with a DSC PC1832 system? I am replacing some 25 year old ESL 429CT smoke detectors
Yes, the System Sensor smokes work fine for any 12V hardwired system that is capable of using 2-wire smokes.
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do you know if this will work with existing CADD-X system that does not have a resistor installed?
All 2 wire smokes require an EOL resistor. Yours may not be at the end of the device but it is somewhere in the line if it is functional. And yes, these do work with Caddx systems.
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Most all modern alarm system now support this 2 wire type smoke detector. A two-wire smoke sends the power and zone circuit down the same two wires. We're often asked which type we recommend, 2 wire type or 4 wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire type. On the other hand, if you will have smoke detectors on more than one level, will have more than a four or five, or you need them with built-in sounders we then recommend the 4 wire type variety.
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