Features Easy to Use: Magnetic switch proximity sensor can be directly connected with transistor, TTL. MOS and other circuit logic interfaces. Wide Power Supply Range: Magnetic proximity sensor has a wide range of power supply which is AC 80 to250V, ensures a wide applications. Normally Open Type: The set contains 5 pcs magnetic switch sensors, the output mode is AC 2 wire normally open. ABS Material: The proximity switch is made of premium ABS plastic material, highly sturdy and stable for long term use. Simple Installation: Compact in size, the magnetic switch proximity sensor is convenient to install and maintain. Specification: Item Type: Magnetic Proximity Sensor Material: ABS Model: SR 401 Output Mode: AC 2 Wire Normally Open Output Current: 300mA Power Supply Voltage: AC 80-250V Package List: 5 x Magnetic Proximity Sensor Package List 5 x Magnetic Proximity Sensor