30~130 dB Decibel Mem Noise Sound Pressure Level Meter

Specifications

Brief Description

This Professional Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB) from 30 ~ 130 dB. It is equipped with built-in calibration signal of 94 dB at 1 kHz and offers 4 measurement parameters Lp (sound level), Leq(equivalent continuous A sound), Lmax (maximum sound level), L_N (percent of all readings over alarm value set).

You can retrieved and save the data with the measured conditions to the memory of the meter for later use or data transfer. The meter has 30 groups/sets of measurement results. With Optional RS-232C software CD and connection of USB, these groups of noise data can be downloaded directly to your computer, and can be exported it to Excel for further analysis.

This device is a portable, easy to use and handy instrument for sound quality control in office, home, school and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use.

Features 

• Multifunctional and wide measuring range with 30 ~ 130 dB and built-in calibration signal of 94 dB at 1 kHz (sinusoidal)
• Offers 4 measurement parameters: Lp (sound level), Leq (equivalent continuous A sound), Lmax (maximum sound level), L_N(percent of all readings over alarm value set)
• With adjustable alarm set and an LED alarm output
• Permits 'A', 'C', or 'Flat' weighting choices and Slow / Fast response time
• Memory of 30 groups of measurement results
• With 0 ~ 1.3V, 10 mV/dB DC output and auto range selection
• Accurate reading with high resolution
• Features instant, easy to read, legibly written results indicating a specific value
• With adjustable auto power off that can be changed to any value between 1 and 9 minutes and can also be manually turned off anytime
• Widely used to test the sound level of environment, machinery, vehicle, ship and other noise
• IEC651 Type 2, ANSI 1.4 Type 2 and GB/T3785 compliant
• Software CD and USB Cables  (Optional)

Specifications

• Display: 14mm (0.55") LCD Screen with backlight
• Parameters measured: Lp, Leq, Lmax, L_N
• Function: Lp, Leq, Lmax, L_N
• Measurement range:
  • Lp : 30 ~ 130 dB (A) , 35 ~ 130 dB (C) , 40 ~ 130 dB (F)
  • Leq : 30 ~ 130 dB (10 s, 1 min, 5 min, 10 min, 15 min, 30 min, 1 hour, 8 hour, 24 hour interval)
  • L_N.: 0 ~ 100 %
• Resolution: 0.1 dB
• Accuracy: ±1 dB
• Frequency range: 20.0 to 12,500Hz
• Frequency weighting: A, C and F (Flat)
• Built-in calibration signals: 94 dB at 1 kHz (sinusoidal)
• Memory: 30 groups max with measuring conditions and with Date and Time Stamping
• Time weighting: FAST (125mS), SLOW (1 second)
• DC output: 0~1.3V, 10mv = 1dB
• Microphone: 0.5" Electret condenser microphone
• Built-in battery condition indicator
• Alarm value set: 30 ~ 130 dB
• Alarm: LED and optional relay contact (NC) output
• Power off: Manual or adjustable Auto Power off time
• Power supply: 4 x 1.5V AAA Alkaline Batteries (not included)
• External DC power supply: 6V DC 100 mA (AC/DC adapter not included)
• Dimension: approx. 236 (L) x 63 (W) x 26 (D) mm (9.29 x 2.48 x 1.02 inch)
• Weight: approx. 170 g (5.99 oz) (batteries excluded)

One Set Included

• 1 x Sound Level Meter
• 1 x Sponge Ball (installed)
• 1 x Instruction manual
• Optional Software CD and USB Cables
• Standard Factory Package