A sound level meter is a handheld instrument used to measure sound, or noise. And what is noise? Well, thats sound that you, or somebody else, does not want to hear!

Sound level meters come in various shapes and forms, but they have common points. They tend to have a pointy bit at the top to stop the sound reflecting back at the microphone. Some lower cost sound level meters do not have a pointed top but instead have the microphone on an extension to get it away from the case, again to reduce reflection. This method is used to keep the case design cost down.

SPECIFICATIONS

Measurement Functions	UT351
Total Range	30 to 130dB
Maximum Level	130dB
Accuracy	±1.5dB
Range Selections	30 to 80dB, 50 to 100dB, 60 to 110dB, 80 to 130dB
Frequency Range	31.5Hz to 8000Hz
Frequency Weighting	A and C
Time Weighting	FAST (125ms) SLOW (1 second)
Analogue Bar Graph	30~130dB
Warning	Over-Range “OVER”, Under-Range “UNDER”
Analogue Outputs	AC: 0.707Vrms full scale; Output impedance: around 600Ω DC: 2Vrms full scale; 10mV/dB; Output impedance around 100Ω
Max/Min Mode
Data Hold
Display Backlight
Sleep Mode
Low Battery Display	4.8V

GENERAL CHARACTERISTICS

Power	1.5V Battery (AA) x 4
LCD Size	53 x 41mm
Product Color	Red and Grey
Product Net Weight	330g
Product Size	273 x 70 x 39mm
Standard Accessories	Batteries, English Manual
Standard Individual Packing	Gift Box
Standard Quantity Per Carton	30pcs
Standard Carton Measurement	670 x 385 x 300mm (0.077 CBM Per Standard Carton)
Standard Carton Gross Weight	18kg