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• Gel-filled (non-refillable)
potting soils or soilless media
CGA600 inlet - for use with 1-lb or 1/4lb cylinders
preventing any flames or molten drips
Particle Mass Concentration Detector with Formaldehyde CO2/PM2.5/PM10 TVOC Temperature/Humidity Grow Strong • Gel-filled (non-refillable)The Sper 900033 Particle Mass Concentration Detector is an advanced, desk or table top device that accurately monitors formaldehyde (H2CO) and other important air quality levels in a closed environment. The large, colorful LCD display indicates multiple indoor air quality parameters with a thoughtfully designed, graphical user interface. The entire display functions as a six color warning system, where colors correspond to actual realtime pollutions
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