Sound Noise Level Meter SL4200/decibel Meter

We are offering Microphone: 12 inch polarization capacitance microphone
Digital Display: 4digit LCD
Resolution: 0.5dB
Display Update: 2 timessec
Time Weighting:
FAST 125ms
SLOW 1 second
Measuring ranges:
Range 1: (30)32dB - 70dB
Range 2: 60dB - 100dB
Range 3: 90dB - 130dB
Accuracy: ���±2dB (reference conditions 94dB@1kHz)
Dynamic range: 40dB
Overflow indicator: �¢ï¿½ï¿½OVER�¢ï¿½ï¿½ will be displayed when over range, display �¢ï¿½ï¿½OL�¢ï¿½ï¿½ when overflow the upper range more than 5dB.
�¢ï¿½ï¿½UNDER�¢ï¿½ï¿½ will be displayed when under range, display �¢ï¿½ï¿½LO�¢ï¿½ï¿½ when under the lower range more than 5dB or under 30dB.
MAX hold: MAX
Power: One 9V battery
Battery Life: Approximately 110 hours
Operation Environment: 0 - 40���°C(32 - 104���°F)
10 - 75%RH
Storage Environment: -10 - 50���°C(14 - 122���°F)
10 - 80%RH
Dimensions: 185(L)*65(W)*35(H)mm
Weight: 150g (including battery)
Accessories: 9V battery, instruction manual