New, open box, with instructions, no accessories. Tested and working. Spring Return Actuator by Belimo, model TF24-SR US. Specifications: 18 in-lb (2 Nm), Damper approx. 4.5 sq. ft, 24VAC/DC, Spring Return, Modulating and Fail-safe. Device measures 3 X 6 X 2 1/2 and weighs 870 grams.