Carbon Monoxide Detector Tester, Battery Size Not Applicable, Features Fast Test and Reset Time, Includes Not Applicable, Product Type CO Detector Test, For Detector Type CO Detector, For Use With Commercial Detectors, Residential Detectors, Manufacturer Warranty Length 1 yr, Market Commercial, Residential, Maximum Operating Temperature 95 Degrees F, Minimum Operating Temperature 50 Degrees F, Overall Height 6 in, Overall Length 10 in, Overall Width 8 in, Standards UL Listed