Existing CO sensors are usually of either the electrochemical or optical variety. Inexpensive optical sensors, usually battery powered, are limited in their precision and lack displays to determine exact levels of CO concentration. Electrochemical devices offer higher precision and offer a display for CO concentration, but must operate at elevated temperatures and thus must be plugged in to a wall outlet. Researchers at The Ohio State University have developed an electrochemical CO sensor that operates and senses CO at room temperature, thus eliminating the need for a heating device. Therefore, energy demands are far lower when plugged in to a wall outlet, and a battery-powered electrochemical CO sensor can be achieved. This sensor can monitor CO in the ppm range and can be readily fabricated by screen printing techniques with deposition on polymer substrates. Sensors are miniaturizable.
- Home, office, and industrial CO monitoring for occupant safety and fire detection
- CO sensors can be incorporated into mobile devices, such as cell phones
- Increased safety and sensor longevity as no heating device is needed
- For the first time, battery-powered electrochemical CO sensors are possible
- A portable, battery-powered CO sensor with a display becomes possible
- Great reduction in energy consumption
- Low-cost and easy to manufacture