Timekeeping Accuracy Check
Compare the alarm clock against a high-precision standard clock and record the time deviation over a 24-hour or 7-day period; the smaller the error, the more reliable the timekeeping quality.
Alarm Performance Test
Measure loudness using a decibel meter at a distance of 30 cm to ensure the volume is sufficient to wake a sleeper; simultaneously, check for clear sound quality without static or distortion, and verify that the alarm duration meets specifications.
Inspection of Details and Durability
Visually inspect the casing for scratches or paint defects; ensure buttons offer moderate resistance and responsive tactile feedback; check for stable battery life; and confirm the display remains clear and fully legible (without missing segments) in low-light conditions.
Verification Under Extreme Conditions
Simulate common scenarios such as accidental drops and exposure to high or low temperatures to ensure functionality remains intact; for water-resistant models, verify that water resistance meets the rated standards.
