Sensor support subassembly

Sensors for oxidizing gases

Sheetlike object such as microscope slide

Siloxane filter for O2 sensor for bio-gas engine

Smell sensing element and smell sensing device

SO.sub.2 sensor

Solid state chemical micro-reservoirs

Solid state chemical micro-reservoirs

Solid state humidity sensor

Solid state sensor

Solid state sensor

Solid state sensor for carbon monoxide

Solid-state chemical sensor

Solid-state multi-stage gas detector

Solid-state sensor for determining hydrogen and/or NO.sub.x conc

Sorption/desorption gas analysis apparatus

Sparger assembly

Specific and reversible carbon monoxide sensor

Specific and reversible carbon monoxide sensor

Specimen plate lid and method of using