Set of two photogates with diode and phototransistors. The photogates feature a wide opening of 5cm which will accommodate larger carts, cars or balls.
WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.