4-Wire Heat Detectors

4-wire heat detectors don't actually exist. You will only have 2-wire heat detectors and wireless heat detectors. There are also 4-wire combination smoke & heat detectors. Many heat detectors are one-and-done devices, and they need to be replaced after activation. Buy heat detectors from Alarm Grid.
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4-wire heat detectors don't actually exist. You will only have 2-wire heat detectors and wireless heat detectors. There are also 4-wire combination smoke & heat detectors. Many heat detectors are one-and-done devices, and they need to be replaced after activation. Buy heat detectors from Alarm Grid.

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