Sound Level Meter By Mahabal Enviro Engineers Pvt. Ltd

We offer to our clients a variety of sound level meter, which helps in the measurement of intensity of sound and are extremely cost effective. These are available in standard specifications such as accuracy, response frequency, measurement ranges, analogue bar display and frequency weighting.


* Specification: Noise Level Meter
* Accuracy: 1.5 dB
* Response frequency: 50 dB
* Frequency weighting: A\C
* Time Weighting: FAST 125 ms, SLOW 1 sec
* Microphone: Electret Condenser microphone
* Digital display: 4 digitals, resolution 0.1 dB, sampling rate 2 times/s
* Analog bar display: Each analog bar is a 1 dB, sampling rate 20 times/s
* Measurement ranges: 30-80dB, 40-90dB, 50-100dB, 60-110 dB, 70-120dB, 80 130dB
* Total of 6 ranges
* Auto-range: Micro-computer can choose the best measurement ranges
* Over-range indicator: UNDER (less than range) and OVER (over range)
* AC signal output: 0.707 Vrms at FS (Auto-range mode isn t included) Output impedance approx. 600
* DC signal output: 10 mV/dB Output impedance approx. 100
* Power supply: Six LR03 AM4 1.5V SIZE AAA alkaline cell
* Power life: About >35hrs (alkaline cells) Continuous operation
* AC adapter: Voltage 9V DC

a. Voltage ripple<100m Vpp
b. Supply current> 100m ADC
c. Socket: pin: Ground
d. Casing: Positive
e. External Diameter: 3.5mm

* Data Recording: 16000 data (Extended to 128000 data)
* Operating temperature: 0~+400C
* Operating Hu