... sampling at least 20 times , same as clamp 60 coins for samplingTimer alarm function: alarm before time up ……… Beeper optionalEvery coin ... )InputDC12V±20%Relay Load 600WRelay For AC/DC open,close controlApplicationCoin Kiosk, washing machine, TV, message chair, cloth dryer, cyber coffee, Laundromat, laundry,computer ... coins, total 12 different coins) Multi Coin Acceptor with Timer (for washing machine)