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ATD-L3/L3R/L3H Thermal Sensor

The ATD-L3, ATD-L3R, AND ATD-L3H are addressable thermal sensors that utilize a state of the art thermistor sensing circuit for fast response. Apart of the Velociti Series 3 family, the ATD-L3 is a fixed temperature sensor that uses a thermistor sensing circuit to product a 135⁰F fixed temperature alarm. The ATD-L3R provides a combination 15°/minute rate-of-rise temperature sensor with 135⁰ fixed temperature alarm. The ATD-L3H is a variable high temperature detector that provides high temperature detection at 135⁰F - 190⁰F. Compatible with the E3 Series, S3 Series, and 7075 Addressable Fire Alarm Control Panels.

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