Melts snow and sleet to measure as liquid precipitation. No moving parts; no adjustments; self-emptying; measures in .01 inch (0.25 mm) increments. Includes 40 ft. data cable and 40 ft. power cable. Includes thermostatically controlled 18-watt heater with 2 conductor power cable and a 110vac/24vac power adapter. Cable lengths longer than 250 ft. available by special order.