เครื่องวัดเสียง รุ่น Testo-816-1 แบรนด์ Testo 

Sound Lavel Meter

• Sound level meter Testo-816-1 is a sound level meter designed to measure levels in the workplace. Public places Industrial and manufacturing Including the collection and analysis of data.

Features

• Testo-816-1 Sound Level Meter 
• No. 0563 8170
• Measuring Range 30 to 130 dB 
• Record up to 31,000 data within the device 
• Standard IEC 61672-1 Class 2 and ANSI S1.4 Type 2
• Time weighting Fast, Slow at 125ms and 1s respectively 
• Frequency weighting A / C 
• brand Testo, Germany

SPECIFICATION

• easuring range : 30 to 130 dB
• Frequence range : 20 Hz to 8 kHz
• Accuracy : ± 1.4 dB (under reference conditions: 94 dB, 1 kHz)
• Resolution : 0.1 dB
• Measuring rate : 0.5 sec
• Operating temperature : 32 ° to 104 ° F / 0 to +40 ° C
• Dimensions : 11 x 3 x 2 in. / 272 x 83 x 42 mm
• Frequency weighting : A / C
• Microphone : 1/2 in.
• Dynamic range : 100 dB
• Time weighting : FAST 125 ms / SLOW 1 sec
• Battery type : AA x 4
•  Weight : 14 oz. / 390 g