Particularly when working in pits, preventative measurement of dangerous gases is essential to survival. To establish if the pit is safe to work in, the floating probe is used to take measurements at the bottom of the pit before entering. This ensures the safety of all workers. With the Multitec® 520, six gases can be measured simultaneously. For this reason, this gas warning device can be used practically anywhere. A large display allows all parameters to be quickly read from a single screen. It integrates perfectly into the new family of devices from SEWERIN. This ensures compatibility with the comprehensive range of existing accessories.