CO Test Gas, Includes Test Gas with Test Port Nozzle and Conventional Spray Nozzle, Product Type CO Test Gas, For Use With SL-701 Series or Open Area CO Detectors, Manufacturer Warranty Length 1 yr, Maximum Operating Temperature 122 Degrees F, Overall Height 6.5 in, Overall Length 2.5 in, Overall Width 2.5 in, Standards UL Listed. This item has been restricted from sale in the following state (s): []