Gas-actuated Thermometer Model 73

The WIKA Gas-actuated Thermometer Model 73 has been produced and is manufactured in accordance with the EN 13190 standard. The high-quality thermometer has been designed especially for the requirements of the process industry. Particularly in the chemical and petrochemical, oil and gas, and power engineering industries, the thermometer completely manufactured from stainless steel is used successfully.

The stem, the process connection and the case of the instrument are made from stainless steel. To allow optimum fitting to the process, individual insertion lengths and process connections are available. The thermometers have a high ingress protection of IP65 and can be used in outdoor applications even at negative temperatures. With liquid damping operation under high vibration, conditions are possible. Due to the wide variety of possible designs, the model 73 gas-actuated thermometers can be perfectly adapted to any process connection or location.

With the adjustable stem and dial version, the case can be adjusted precisely to the desired viewing angle. With the contact bulb version, temperature measurements are possible without any contact with the medium, even when the pipe diameter is extremely small. The contact bulb is intended for external mounting on pipes and tanks. When mounting this thermometer version, it must be ensured that the contact bulb is in contact with the measuring point over its complete length.


  • Scale ranges from -200 ... +700 °C
  • Fast response behaviour
  • Case and stem from stainless steel
  • Various connection and case mounting designs

Customer Service

Edward van Doorn