Duct co2 sensors respectively measuring transducers, including mounting flange, self-calibrating, witj multi-range switching and active output (17 pages)
Duct co2 sensors and measuring transducers, including mounting flange, self-calibrating, with multi-range switching and active/switching output (17 pages)
Duct hygrostat and humidity and temperature sensors (2.0%), incl. mounting flange, electronic, two-step, with multi-range switching and continuous / switching output (17 pages)
Duct humidity and temperature sensors (1.8%), including mounting flange, calibratable, with multi-rage switching and active / passive output (25 pages)