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Ignoring Heat is not an Option.

Measure, Act, Protect!

The first non-invasive, accurate
heat strain monitoring solution
that continuously ensures your
team's safety.


Track Core Body Temperature !

Our CALERA® solution offers an innovative approach to monitor core body temperature effectively, alerting firefighters when to take preventive action to avoid heat strain. 

  • Measures core body temperature and heat strain
  • Reliable data despite extreme hot environments
  • Comfortable under turnout gear
  • Water and sweat proof
  • Rechargeable with 6 days battery power
  • Team Dashboard 


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Join our Firefighter Pilot Program !

Participate in our Firefighter Pilot Program to test our CALERA® technology! Our solution prevents heat-related illnesses, adapts heat guidelines to protect against long-term effects, and provides effective heat acclimatization training. Your Input and your experience using our Technology helps us to further develop CALERA® for your specific needs. 

Join us in shaping the future of firefighter safety. Contact us via the form below to learn more! 

Prevent Heat Stress With Body Temperature Monitoring

Occupations that face high temperatures and humidity present significant hazards to workers' well-being. The repercussions can be severe, leading to decreased efficiency, mistakes, more frequent absences, and, in extreme cases, tragic outcomes. On average, 2,400 firefighters report injuries from thermal stress every year (1), 45% of all firefighters deaths are cardiac events, of which repeated exposure to high heat loads is a main driver (2).  

Book a meeting: 

If you have the following questions, Book a meeting with our expert:  

  • Want an introduction to our innovative core body temperature monitoring technology 
  • To learn more about the connectivity options? and how to integrate our monitor into your work floor 
  • How to integrate our monitor into your workspace? 
  • How to increase health and reduce costs by monitoring heat-strain? 

Book a meeting today >>

Don't have time for a meeting?

Tell us what your queries are 

Send us an email with the questions you have regarding our product. We will reach out to you as soon as possible. 

Remember to add " Work-safety solution" in your email subject. 

Learn more today!

Reach out to me

greenteg AG  Hofwisenstr. 50A | 8153 Ruemlang, Zurich, Switzerland