Memory Size:16,382 temperature; 16,382 each temperature and RH; 32,764 readings for voltage, current, and thermocouple; and 32,510 for carbon monoxide.Sampling Mode:Stop on memory full.Sampling Rate:Selectable from 10 s to 12 hr (temperature and RH models); 1 s to 12 hr (voltage, current, and thermocouple models); 10 s to 5 m (CO models).Computer Requirements:Compatible with Windows® 7, Windows® 8 and Windows® 10.Power Requirements:3.6 V 1/2 AA lithium metal battery, included, user replaceable.Housing:ABS plastic blend.Alarms:Programmable high/low.Interface:USB Port.Weight:1.5 oz (43 g).Agency Approvals:CE.