As an Amazon Associate, we earn from qualifying purchases. AIR4111T20RS Greystone Energy Systems . AIR4111T20RS Gallery Attributes Brand name, Manufacturer name, ManufacturerGreystone Energy Systems Attribute000 lbs AttributeKey00Gross Weight CategoryL1HVAC CategoryL2HVAC Sensors CategoryL3Gas Sensors Extra Product Name, MPNAIR4111T20RS atoms, moq, multiple, tierMinQty11 keywordsGalco, Galco Industrial, Galco Industrial Electronics qtyInStock0 SKUAIR4111T20RS-GRYS snippetRoom Air Quality Monitor, 0-2000 ppm CO2 Equivalent, LCD Viewable, LED Viewable, 20,000 Ohm, NTC tierPrice1335.16 Distributor offers SellerSKUMOQIn stockMultiplePrices GalcoAIR4111T20RS-GRYS111 @ $335.16