The D204S with Infrared Sensors TO-5 RoHS manufactured by Senba is an electronic part used for sensing infrared radiation. The TO-5 form factor and RoHS compliance ensures compatibility with a wide range of applications, and makes it easy to retrofit existing systems. This device features a wide range of emission angles, response time, and cutoff wavelengths. It is designed to provide accurate, reliable, and repeatable readings, and it is tested to temperatures as low as -20 degrees Celsius. The D204S is suitable for use in a variety of industrial applications including temperature sensing, motion detection, and safety assurance systems.