DOL-0803-W02M is a photoelectric switch made by the company Sick. It has a 2-wire DC output that can be used to trigger an action such as activating a motor. It can be used for control and monitoring purposes in various applications. The switch has a sensing range of 0.3 to 8 meters and a switching frequency of 200 hertz. It is weatherproof and can operate in a temperature range from -25 to +70 Celsius. The device is designed using robust plastic housing and reliable LED transmitters. The device also offers a long service life and low maintenance requirements.