TRSI TA654B Large Screen Wall-mounted Noise Meter Decibel Detector DeviceFeatures: 1. High precision microphone: High sensitivity 1 2 inch condenser microphone with high precision, high sensitivity and fast instantaneous response characteristics. 2. Back bracket design: Hidden bracket design, can be placed on the desktop. 3. Upper limit alarm prompt: The upper limit alarm threshold can be set; when the measurement is higher than the set threshold, the buzzer will sound an alarm prompt, and the alarm prompt light will
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TRSI TA654B Large Screen Wall-mounted Noise Meter Decibel Detector Device