The ZTP-148SR is an infrared detector thermopile IR sensor manufactured by Amphenol. It is designed for use in a variety of optical sensing applications. It features a thermopile array of four thermopile elements mounted on an epoxy mount and glass hermetic package for a robust and reliable construction. It is capable of sensing temperatures from -40°C to +150°C with an accuracy of ±2°C. In addition, it offers an adjustable dynamic range of 0°C to 130°C, allowing the user to select the most suitable temperature sensing range for a given application. The device also offers a high signal-to-noise ratio with a maximum output of 10mV/°C and a low noise floor. It is suitable for use in both indoor and outdoor settings and supports a wide range of operating temperatures.