Mastech MS6701 - Digital sound level meter with RS-232

FEATURES:
• LCD digital display
• Anolog bar indicator
• Wide dynamic range
• Auto/Manual range
• Fast/Slow response selectable
• MAX value hold function
• A/C weighting selection
• Date and time display
• AC/DC auxilitary output
• Memory function
• RC232C interface
• Computer record graph software
• Back light
• Low power indication
• Measurement range: 30dB ~ 130dB
• Accuracy: ±2dB
• Resolution: 0.1dB
• Display: 3 ^1/2 digitals
• Sample rate: 2 times/s
• Frequency range: 30Hz ~ 8kHz
• Memory function: 16000 records
• Over range indication “UNDER” or “OVER”
• Low power indication
• Battary voltage 6 x 1.5V (AAA)