Product name: LED upgraded staircase sensing control device Input voltage: DC12V/24V Port: 2 Sensor head: 2 (AB) Channel: 32 (set to 1-32 step) Operation supplement:If AB induction is triggered simultaneously within 6 seconds, up and down at the same time. If AB induction is 6 seconds later. AB induction direction only goes from one end to the other. Set the chase time. Step every other step, all on, follow, automatic. If the induction continues at the delay time, keep it on = total time from A to B + delay time. Short-circuit protection device, short circuit status, five status indicators strobe. precautions for products: This product is low voltage DC12V-24V. It is necessary to connect the switching power supply. Do not connect the wrong voltage to avoid burning the controller. The input port is divided into positive and negative poles. Do not connect them reversely. Do Switch off the power before you operate the light connection. After the operation is completed, check the installation line and the lamp connection before powering on. If the wire and the lamp are not installed according to the requirements, there may be a short circuit, resulting in abnormal control. This product is not waterproof fireproof fire. Do not immerse in water or use near the fire source. Color: As Shown Material: plastic Package Contents: 1 x LED Controller 2 x Sensors 2 x Output Cables Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.