Lutron GCO-2008 CO Meter COH-9902SD

FEATURES: * Two function : CO (Carbon monoxide), Temperature * CO range : 0 to 1,000 ppm x 1 ppm * Temperature. : 0 to 50 C * CO measurement with fast response time * High repeatability and high accuracy * stand-alone device, easy to carryout and operation * CO function with alarm setting * Large S-TN LCD, high contrast, easy readout * Data hold function for freezing the desired value on display * Records Maximum and Minimum readings with Recall * RS232/USB computer interface * Microprocessor circuit assures maximum possible accuracy, provides special functions and features * Heavy duty amp; compact housing with hard carrying case, designed for easy carry out amp; operation * Auto shut off is available to save battery life * Power supply from batteries or DC 9V adapter in