Tonometer Case Inserts
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Avoid costly repairs by replacing your old worn out Tono-Pen ® case insert. Your new insert easily installs in seconds! One of the top causes for Pen malfunctions and repairs is the messy tiny particles from the old worn insert clogging up the Transducer. Over time this causes inaccurate readings, calibration issues and eventual repair or worst an un-repairable Pen.