🚚SG Seller🚚3-in-1 Multipurpose Portable Professional Chess Clock Digital Chess Timer Game Timer，LEAP Chess

cl Protection class: IP50Multifunction: countdown and countdown timer, maximum 10 hours, preset. Bonus and delay, alarm function when game overPower supply: 1x AA battery (1.5V) (Battery NOT included)Storage Note: The chess timer should be stored in a dry and ventilated place. The temperature remains between 5 and 35 ° C. The relative humidity should be below 70%. Keep the meter away from the goods that contain corrosive gas.