A reliable performance can be assured by setting the temperature of the photoelectric sensor to -25°C~55°C. It's important that 12V~24V is applied to the circuit or system for these components to work. The ideal response time for a photoelectric sensor is 1ms. In order to ensure reliability, the photoelectric sensor must operate at a minimum temperature of -25°C. Having a maximum operating temperature of 55°C ensures that the system will operate reliably.