Blood Pressure Monitor (630-639) Care and Maintenance Faxback Doc. # 3433 Your Digital Blood Pressure Monitor is an example of superior design and craftsmanship. The following suggestions will help you care for the monitor so you can enjoy it for years. Keep the monitor dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that can corrode the electronic circuits. Handle the monitor gently and carefully. Dropping it can damage the circuit board and case, and can cause the monitor to work improperly. Wipe the monitor with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the monitor. Use and store the monitor only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, damage batteries and distort or melt plastic parts. Use only fresh batteries of the required size and type. Always remove old or weak batteries. They can leak chemicals that can destroy the electronic circuits. Keep the monitor away from dust and dirt, which can cause premature wear of parts. Modifying or tampering with the monitor's internal components can cause a malfunction and might invalidate its warranty. If your monitor is not performing as it should, take it to your local Radio Shack store for assistance. (br/all-12/05/94)