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Hello! I'm your chat assistant. I've reviewed the instruction manual for the SHINWA Digital Angle Meter II, models 76825 and 76826. This device is designed for measuring angles, gradients, and rise per meter with added features like dust and waterproof design, calibration , hold function, and an alarms for horizontal/vertical position. I'm ready to help you with any questions you have about the device or its operation based on the provided manual.
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How do I calibrate the device?
How do I change the measurement unit?
What does the HOLD button do?
How to turn on or off the backlight?
