When working outdoors in middle-eastern countries and the temperature goes above certain range (like 45C/110F range), sirens/alarms are raised to halt the work

When working outdoors in middle-eastern countries and the temperature goes above certain range (like 45C/110F range), sirens/alarms are raised to halt the work and give a cool-off period for the workers. My friend worked as an instrumentation engineer in the region and he mentioned about a wide-spread malpractice of recalibrating these monitoring tools to increase the temperature threshold by few degrees. So, the sirens won't sound at 110F but instead will sound only at 115F. And there are many other instances to prove the horrible working conditions and lack of safer work environment. Qatar is relatively less worse compared to the other nearby countries though.