Item Type: 8bit Tracking Module_x005F_x000D_Material: Resin_x005F_x000D_Power Supply Voltage: DC3.3V-5V_x005F_x000D_PCB Board Size: Approx. 67 x 17mm / 2.6 x 0.7in_x005F_x000D_Fixed Hole Diameter: Approx. 3mm / 0.1in_x005F_x000D_Number of Sensors: 8Pcs_x005F_x000D_Application Range: _x005F_x000D_1. Robot_x005F_x000D_2. Smart car_x005F_x000D_3. Laboratory_x005F_x000D_4. DIY 1D1-D8 mark on the module correspond to 8 sensors from left to right, clear and easy to read 2D1-D8 output mode is analog quantity, normal high level after power on, very stable 3Use obstacles to cover the sensor, according to the distance of the obstacle, the voltage value of D1-D8 will decrease, and the range of change is within 1V 4The product come with wide applications, include robots, smart cars, laboratories, DIY 5Adopt good?quality resin material, possess environmental protection, heat resistance, low temperature resistance1 x 8bit Tracking Module