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Firmware Update for Optimus/Optimus+ Sound Level Meters
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OLED Screen Degradation Information
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Powering the Optimus/Optimus+
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Changing the Time History Sampling Rate on your Optimus/Optimus+
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How to make a measurement with an Optimus/Optimus+ Red
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Understanding Optimus/Optimus+ Product Codes
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Optimus/Optimus+ Screensaver and Display Power Saving Modes
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Troubleshooting USB Connectivity for Optimus/Optimus+
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I’m seeing the “preamplifier not fitted” message. What does this mean and how do I fix it?