SNT Sensortechnik AG has released the UPB ultrasonic barrier sensor. It is available from SICK .
The maximum range between transmitter and receiver is 1500mm, with no blind range. It has a measuring speed of 200Hz and can work in environments with strong contamination and with transparent objects. All of its sensors are IP67 100% waterproof.
The microprocessor-controlled UPB series combines high acoustic power with small size. This is achieved with optimised acoustic Sonarange transducers working at high voltages. Transmitter power is adjustable from 5% to 100%. This allows the barrier to be used in a very wide range of applications.