DEVMO 3pcs E18-D80NK Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Proximity Switch Smart car 3-80cm Compatible with Ar-duino Robot

The DEVMO 3pcs E18-D80NK Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Proximity Switch is a versatile and robust sensor that is compatible with Ar-duino Robot and can be used for various applications, including toy cars. However, there are some specifications that need to be updated. In terms of physical dimensions, the diameter of the sensor is 18mm, but with the nuts, it measures around 23.3mm. The body length is actually 50mm, not 45mm, and there is additional space needed to bend the thick cable. It would be helpful if the seller provided accurate dimensions. In terms of electrical specifications, the current Consumption is not as specified. It actually ranges from 2.2 to 3.4mA, depending on whether an obstacle is detected or not. Additionally, the detection distance can be adjusted from approximately 10 to 80cm, not 2cm as stated. The sensing angle is narrow, which helps avoid false detection of surrounding objects. Despite these discrepancies, the sensor itself is of good quality and performs well. Some customers have successfully connected it to other devices such as relay boards and Insteon IO units for garage door control. Overall, the DEVMO 3pcs E18-D80NK Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Proximity Switch is a useful and reliable sensor.