Power: 230VAC+- 10%, 5060 Hz Clock system: Quartz oscillation system. Print method: Shuttle printer with automatic card insertion Memory: Lithium battery is installed, and good for three years of cumulative power failure. Dimension: 196(W) x 218(H) x 104(D)mm Operating conditions: -10 to +45 deg C 10% to 90% RH (non-condensing) Power consumption: Normally 3W, Maximum 15W Selection: Three Nos of INOUT selection with led indication