Drager Pulsar 7000 Manual Link -

: Operates from -40°C to +60°C and includes heated optics to prevent condensation or ice. Installation and Commissioning Dräger Pulsar 7000 Tx L Range JB Ex e, 6851701

0.5% LEL (Lower Explosive Limit).

I opened the manual. Page one wasn't safety warnings. It was a handwritten note in faded red ink: drager pulsar 7000 manual