As an Amazon Associate, we earn from qualifying purchases. CHTDTB2MR Greystone Energy Systems . CHTDTB2MR Gallery Attributes Brand name, Manufacturer name, ManufacturerGreystone Energy Systems Attribute000 lbs AttributeKey00Gross Weight CategoryL1HVAC CategoryL2HVAC Sensors CategoryL3Gas Sensors Extra Product Name, MPNCHTDTB2MR atoms, moq, multiple, tierMinQty11 keywordsGalco, Galco Industrial, Galco Industrial Electronics qtyInStock0 SKUCHTDTB2MR-GRYS snippetCarbon Dioxide (CO2), Humidity & Temperature Transmitter, Duct, Polycarbonate with hinged and tierPrice1690.31 Distributor offers SellerSKUMOQIn stockMultiplePrices GalcoCHTDTB2MR-GRYS111 @ $690.31