Keyence is one of those amazing Japanese companys that makes a huge range of measurement and control products that are all superb.
Have a look at their excellent web site for full details on each product.
MasTec has sold Keyence into the most demanding of measurement sites and always had success.
Keyence make PLCs (smallest in the world) and HMIs, analog controllers, photoelectric sensors, bar code readers, laser, ultrasonic, and inductive gauging systems, thru-beam laser gauges, vision inspection systems, colour measurement systems and much more.
Their superb PLC Ladder software allows “targetless” ladder building using a simulator. That is you don’t need a PLC to test your programs, just simulate.