I’m turning to Section 41 now.

| Parameter | Value | |-----------|-------| | Measuring range | 0.01 – 200 mg/m³ | | Resolution | 0.01 mg/m³ | | Flow rate | 2.0 L/min ±0.1 L/min | | Particle size | Respirable (4 µm cut-off with cyclone) | | Operating temp | 0 – 50 °C | | Storage temp | -20 – 60 °C | | Weight | 1.1 kg (with batteries) |

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

The Dräger Pulsar 7000 Series consists of explosion-proof, open-path infrared gas detectors designed for the stationary monitoring of combustible hydrocarbon gases and vapors.

The is sometimes split into multiple documents for clarity:

Additionally, Dräger offers the (iOS/Android) that includes an interactive manual, instructional videos for sensor changeouts, and a calibration timer.