Keyence BL-601 ultra compact bar code scanners are half the size of standard readers, measuring just 31 x 40 x 21 mm. The BL601 measures just 1/2 the size of conventional models with twice the range. Using Keyence original AGC (Auto Gain Control/SRC=Specular Reflection Cancel) circuits for advanced, high speed performance, the BL 601 offers excellent reading depth and angle characteristics. In addition, the reader includes built-in SRC circuits which greatly reduce the effects of extraneous reflected light for more reliable and stable reading.