The WT-4000 series of pneumatic-to-digital thermostats converts older pneumatic room control systems and enables communication with newer digital building automation systems. According to the company, it provides the benefits of a digital control system, including programmable occupancy scheduling and remote temperature monitoring. The thermostats are long-life battery operated and require no additional wiring.

Typical applications include commercial buildings, schools and critical environments like hospitals. The thermostats come in eight different configurations and offer either Fahrenheit or Celsius displays.