An opaque or cloudy screen usually indicates residue or screen degradation. Here’s what you can do:

• Chemical residue from cleaning – If a disinfectant or cleaning solution was used, residue may remain on the screen. Wipe gently with a soft, lint-free cloth slightly dampened with distilled water. Do not use high alcohol solutions as they will corrode the display and cause opacity. If the lens becomes hazy or scratched, NOVUS No. 2- Fine Scratch Remover or Polywatch lens polishing cream can be used to remove the damage
• Check batteries and connections – Ensure batteries are charged and probes are properly connected, as poor connections can sometimes affect the display.