Specifications:

• sample rate: 2 times/second
• resolution: 0.1db
• Power supply: 9V battery (not include)
• operating condition: 0~40 10~80%RH
• Model Number: GM1358
• Measuring Level: 30-130dBA
• Measuring level: 30~130,40~90,50~100,60~110.80~130
• linearing range: 50 db/100 db
• Frequency Range: 31.5Hz to 8.5KHz
• digital display: 4 ligits
• Brand Name: OUTEST
• Accuracy: 1.5dB