Display: Maximum display 1999 counts, character height 8mm, measurement range: 0 to 1999μW/cm2 2 to 20.00mW/cm2 Resolution: 1μW/cm2, 0.01mW/cm2, Accuracy: ±(4%F.S+2dgt) Measurement wavelength: 250-390nm, response time: approx. 0.4 seconds/time Power supply: CR2032 (3V) x 1, current consumption: approx. 5mA, dimensions/weight: 45(W) x 120(H) x 20(D) mm, approx. 160g Accessories: battery, instruction manual