Maintenance - Sentry ST520 Instruction Manual

6. Maintenance

Clean the Receptor Head：
Blow off loose particles using clean compressed air. Gently
brush remaining debris sway with a camel's hair brush. Carefully
wipe the surface with a cotton swab. The swab may be
moistened with some water.
Clean the Housing：
When you clean the meter, wipe it with soap and water on a
damp sponge or soft cloth.
NOTE：
Never use organic solvents to clean the meter or receptor head.
(such as thinner, benzene, etc. ) If the meter will not be used for
a long time, remove the battery and close the receptor cover.
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