Wireless technologies are rapidly being adapted from simple monitoring and control to supervisory control and data acquisition (SCADA) systems. Wireless provides highly reliable data communications in the hard and interference-heavy conditions. In this article, a new wireless SCADA system has been built to control the electrostatic precipitator (ESP) in Al-Tahady site/Al-Zawraa state company wirelessly. Two wireless devices are used Rocket M5 and AirLive_WHA-5500CPE which utilize the Wi-Fi wireless technology and the IEEE802.11/b standard was used. They used as a transceiver for sending and receiving the information between the master station (MS) and Programming Logic Controller (PLC). A more detailed focus on Iraq cement plants using wireless technologies for monitoring and control of the whole process as an application also was presented.