Flushing mechanisms EM1 Electronic universal dual flush mechanism. Integrated sensor that allows the activation of the full or partial flush depending on the hand movement. Powered by four 1.5 V LR6 (AA) alkaline batteries. Ref: A822599900 i General technical data • Transmission frequency: Each 128 ms • Activation mode: Moving hand - partial flush Still hand - full flush • Water level: 182-224 mm • Flush speed: 2,5l/s • Activation: Electronic or manual • Push-buttom dimension: 48 mm • Battery life: 40,000 flushes