[Clear Reading Data]4-digit display and automatic backlit feature for easy visibility in dark environments.
[High Sensitivity Measurement]Equipped with a sensitive sensor for fast and accurate noise level measurements.
[Versatile Measuring Range]Ideal for environments like factories, offices, homes, and schools with a range of 30-130dBA.
[Sound Control Application]Reliable for monitoring sound quality in various settings including construction sites.
[ and Min Functions]Features hold functions, audible alarm, adjustable power off options, and temperature measurement.

Features:
The product adopts 4-digit display, which makes the reading data clearer and more convenient.
High sensitivity sensor, fast measurement and more accurate.
The measuring range is 30-130db, which is suitable for the measurement of sound or noise in most occasions.
Suitable for sound quality control in factories, offices, homes, schools and construction sites.
With maximum and minimum hold function. Data hold function. Red backlit alarm and audible alarm. Automatic or manual power off function. Temperature measurement function.
Specifications:
Brand: SMART SENSOR
Model: ST9604
Measure range30-130dBA
Accuracy±1.5db reference SPLpoint at 94dB@1KHz）
Frequency WeightingA weighting
Frequency range31.5Hz-8.5KHz
Sampling rate2 times/second
Data HoldMaximum and Minimum hold
Digital display4digits
Resolution0.1dB
Temperature measurement range-10°C~50℃（14F-122F)
Accuracy±2℃
Resolution0.1℃
Microphone1/2inch Electret Condenser Microphone
Power supplyAAA battery X 3 (Not included)
Package List:
1*Sound Level Meter
1*Instruction Manual
1*Sound Level Meter
1*Instruction Manual