User manual CASIO GQ-50

[. . . ] · Holding down + or ­ changes the flashing digits at high speed. · You can set the year in the range of 2000 to 2099. The day of the week is set automatically in accordance with the date setting. [. . . ] · Heat can shorten battery life and cause malfunction. Keep the clock away from heaters and direct sunlight when using it. · Never use the clock in a bathroom or any other area subject to high humidity. · Never try to take the clock apart. · To clean the clock, use a soft, dry cloth or a cloth moistened in a solution of water and a mild neutral detergent. Wring out all excess moisture from the cloth. Never use thinner, benzene, alcohol or other similar agents. · The LCD may become difficult to read at temperatures outside of the operating temperature range (0 to 40°C). · Display figures may be difficult to read when viewed from an angle. · Be sure to keep all user documentation handy for future reference. assumes no responsibility for any loss, or any claims by third parties that may arise through the use of this clock. Important! · Never point the flashlight directly into anyone's eyes. Doing so can harm vision. THERMOMETER FUNCTIONS · A built-in sensor measures temperature and shows the measured value on the display. · The temperature display shows "LL" for temperatures below ­20°C and "HH" for temperatures above 50°C. · Though temperature readings are displayed up to ­0. 1°C and greater than 40. 1°C, note that such readings are actually outside the guaranteed temperature range of this clock. BATTERY REPLACEMENT Replace batteries whenever the display of the clock becomes dim and difficult to read. [. . . ] · Never charge the batteries that come with the clock. · Should batteries ever leak while in the clock, wipe out the fluid with a cloth, taking care not to let any get onto your skin. · Replace the batteries at least once a year, even if the current batteries are working properly. [. . . ]