Design criteria:
- a. international committee IEC651 TYPE2 standards
- B. The national standard ANSI S1.4 TYPE2
* measurement range: 30 ~ 130 dBA
* accuracy: + / - 1.5 dB
* digital & resolution: four & 0.1 dB
* frequency response: 31.5 Hz to 8.5 KHz
* frequency weighted feature: A (simulating to the human ear)
* sampling frequency: 2 times per second
* the microphone: 1/2 inch capacitive microphone
* the maximum lock
* automatic backlit display
* low power display
* manual/automatic shutdown
* packing: blister + paperboard
* power supply: 9 v battery
57 26 * * * product size: 149 mm
* product net weight: 144 g (including battery)

Model: GM1351
Type: digital noise meter
Measuring range: 30 ~ 130 dBA
Accuracy: + / - 1.5 dB
Resolution: the four & 0.1 dB
Size: 57 * 26 * 149 (mm)
Weight: 0.144 (kg)