GM-1357 30~130 dB Digital Sound Pressure Level Noise Decibel Meter Tester

 This high-precision high quality high accuracy Sound Level Meter (30 to 130 Decibels) has been designed to meet the measurement requirement of Safety Engineers, Health, Industrial Safety offices and Sound Quality control in various environment. Great for noise pollution monitoring. It provides a reliable, accurate and fast way to measure sound level and calculate the decibel of factory, office, traffic, home theater setup, health and safety compliance, vehicle noise testing and audio system. Also measures both A & C frequencies to get the right response for the human ear, as well as fast or slow responses to get an "ambient" reading or a short noise. Additionally, it's extremely easy-to-use. Just press one button and results will be displayed instantly on the screen, and simply setting the range, the accurate decibel can be calculated.

Features

• Designed according to International Electrician Committee Standard 
  • IEC 651 TYPE 2
  • ANSI S1.4 TYPE 2
• Wild Measurement Range: 30-130dB
• High Accuracy: up to ± 1.5dB
• Windscreen/sponge ball to filter-out unwanted signals
• With Bar graph & Overload Indication (Over/Under)
• With 2 equivalent weighted sound pressure levels A and C
  • A frequency weighting for general sound level measurements
  • C frequency weighting for checking the low-frequency content of sounds
• AC & DC analogy signal output are available connecting to frequency analyzer level recorder, FFT analyzer and graphic record
• Large LCD screen with digits reading
• Fast and Slow dynamic characteristic mode
• Maximum value hold function to lock up the maximum reading
• Auto power off design for energy saving
• Dynamic sound level ranges & battery life indication
• Brand new, portable and easy to use
• Factory pre-calibrated

Specifications  

• Measuring Level: 30-130dB (A) , 35-130dB (C)
• Level Ranges:
  • 30-80dB
  • 50-100dB
  • 60-110dB
  • 80-130dB
  • 30-130dB
• Accuracy: ±1.5dB (under reference conditions)
• Resolution: 0.1dB
• Frequency Range: 31.5Hz to 8.5KHz
• Linearity Range: 50dB/100dB
• Bar Graph
  • 50dB scale at 1dB step for monitoring current sound pressure level
  • Sample Rate: 20times/second
• Overload Indication: OVER/UNDER
• Frequency Weighting: A and C
• Digital Display: 4 digits
• AC Signal Output: 0.707Vrms at FS output impedance approx. 600Ω(ohm)
• DC Signal Output: 10mV/dB, output impedance approx. 100Ω(ohm)
• Time Weight: FAST / SLOW
• Microphone: 1/2" Electrinic Condenser microphone
• Max hold function: Yes
• Operating Condition: 0~40°C, 10~80%RH
• Storage Condition: -10~60°C, 10~70%RH
• Power Supply: 4 x AA 1.5V alkaline battery (included) or DC 6V 100mA (maxumim DC9V) (not included)
• Battery Power Life: About 30 hours (alkaline battery)
• Size: 256 x 70 x 35mm
• Weight (Meter with Sponge Ball/Windscreen Filter): 230g (excluding batteries)

Set Includes

• 1 x Professional Sound Level Meter
• 1 x Sponge Ball (Windscreen Filter)
• 1 x Output wire cable
• 1 x English Operation Manual
• 4 x AA Batteries