מד רמת צליל דיגיטלי של Ximulizi, מד רעש, בודק מדד כף יד, גלאי רעש

מאפיינים מוצהרים

Material:

ABS plastic

Accuracy:

± 1.5dB (based on standard sound source 94dB @ 1KHz)

Frequency response range:

31.5Hz ~ 8.5KHz

Measurement range:

30 to 130 dB

Frequency weighted characters:

weights and C weights

Response time:

fast and slow

Microphone:

6mm condenser microphone

Digital display:

3.5 digits, resolution

Dynamic scale display:

30 to 130 dB (1 scale is equal to 2 dB)

Overload display:

UNDER or OVER on the display screen

Time display:

Yes

Warning:

Set the maximum value of the warning

Storage:

1 stock / sec, 17 hours constant storage

Connection to computer:

via USB cable

AC signal output:

0.65Vrms per shift and full scale, impedance output about 600 ohms

DC signal output:

10 mV / dB, impedance output is about 100 ohms

Power supply:

3 * 1.5V AAA battery (not included)

Operating temperature / humidity:

0 to 40 ° C / 32 to 104 ℉ (10% to 80% RH)

Storage temperature / humidity:

-10 to 60 ° C / 14 to 140 ℉ (10% to 70% RH)

Item size:

Approximately. 215 * 64 * 27mm / 8.46 * 2.52 * 1.07in

Item weight:

Approximately. 178g / 6.29oz

Package weight:

approx. 374g / 13.21oz

Package size:

approx. 23.3 * 18 * 5.5cm / 9.18 * 7.09 * 2.17in

Package list:

1 * Sound level meter:

1 * USB cable:

1 * CD:

1 * User manual (English):

HD display. :