The DB8852 digital sound / noice level meter is designed to meet IEC 61672-1 Class 2 with accuracy of ±1.4dB. A ½" electret condenser microphone ensuring accurate and repeatable readings. It can store up to 32,600 readings on the instrument, with a USB interface for download of stored readings to a PC. A modern ergonomically shaped grip, high-intensity backlight and USB interface make this sound level meter extremely convenient to use. This device operates on a 9V battery (about 30 hours) or an AC adapter (included). This Sound Level Meter is designed for noise project, quality control, illness prevention and cure and all kinds of environmental sounds measurement. It is applied to the sounds measurement at factory, school, office, traffic access and household, etc.

FEATURES

• Large LCD display with function indicators quasi-analogue bargraph and backlight
• Auto ranging 30 to 130dB
• Manual ranges 30~80dB - 50~100dB - 80~130dB
• Resolution 0.1dB
• Accuracy ±1.4dB
• User selectable ‘A’ & ‘C’ frequency weighting
• Adjustable alarm levels
• Fast or slow response
• Max/Min & Hold measurements
• Data logging for 32600 readings with Date & Time Stamp
• Data sampling interval can be set by the user from 1 second to 59 seconds
• Over range and under range indication
• Power 9V Battery or AC Adapter
• Low battery indication
• Auto power off after 15 mins of no activity
• Confirms to the IEC61672-1 CLASS2 for Sound Level Meters
• Standard ¼"mm camera bush for tripod mounting
• USB interface for data transfer to a PC
• Analogue output AC: 1 Vrms DC: 10mV per dB for connection to frequency analyzer or X-Y shaft recorder
• User calibration via a potentiometer using a standard sound level calibrator

SPECIFICATIONS

Description	High Accuracy Sound Level Meter with Datalogger Function
Model	DB8855
Level ranges	30dB ~ 130 dB LO：30dB~80dB Med：50dB~100dB Hi：80dB~130dB
Frequency range	31.5HZ ~ 8KHZ
Accuracy	±1.4dB
Resolution	0,1dB
Dynamic range	50dB
Frequency weighting	A/C
Time weighting	FAST -125ms / SLOW -1s
Microphone	1/2 inch electret condenser microphone
Display	4 digits LCD display with a resolution of 0.1dB
Display Update	2 times/sec
Alarm function	OVER - when input is more than upper limit of range. UNDER- when input is less than upper limit of range.
Analog output	AC/DC outputs from earphone outlet AC=1Vrms ，DC=10mV/dB
Data output	USB data traffic
Power type	9V alkaline battery (included) type NEDA 1604A; 6LR61 or 6F22
Automatic Power off	Auto shut off after 15 minutes to preserve battery life
Product weight	0.350kg
Product dimensions (LxWxH)	278x76x 50mm
Operating temp.	0° to 40°C
Humidity range	10% to 90% relative humidity (RH)
Standard applied	IEC61672 -1 CLASS2
Accessories	Instruction manual, battery, screwdriver, windscreen, software, USB cable. Gift box with carrying case