Measuring temperature accurately is a prerequisite for meeting the control expectations of users and building managers, so the location of temperature sensors is critical for optimal measurement. Installation difficulties can make sensor location difficult, compromising the cost, quality, and delivery time of the project. Today wireless technology is evolving rapidly. Previous concerns regarding reliability, battery life, and cost have been enhanced to the point where wireless technology is an alternative to traditional sensors for common applications. The result is that today there are several wireless zone sensors available on the market. According to a market study conducted by Frost & Sullivan, by the end of 2008 the volume of wireless sensors installed in the United States will be close to the number of existing wired sensors. The renovations are among the facilities that benefit most from these devices. Wireless technology solves many of the initial difficulties during installation and allows for very low-cost sensor relocation when the space is reconfigured.
by Jim Kohl*