Sound level meter comparison

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This is an alphabetically ordered table of various sound level meters, i.e. test and measurement equipment which measures the sound pressure level and can log data your PC via USB, RS232, and so on. We do not list devices without PC logging functionality, as those are not really useful for sigrok.

This page lists commercial and non-commercial devices with a short overview of their capabilities. We list all kinds of devices here, not only those supported by sigrok.

You should not use the information here as the sole source for any buying decisions, this is just meant for informational purposes. Please carefully check the vendor websites if you intend to buy any hardware.

Device PC interface Frequency
range
Measurement range
(A-weighted)
Resolution Accuracy
(94dB@1kHz)
Frequency
weighting
Time
weighting
Memory
(#records)
Resources Price
Amprobe SM-20A RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 14000 1, 2, 3 $300
Benetech GM1356Note 9 USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 4700 1, 2 $58
CEM DT-173Note 3 USB 31.5Hz - 8kHz 30dB - 130dB - 1.4dB A, C F, S 129920 - $168
CEM DT-2232Note 4 RS-232 30Hz - 10kHz 35dB - 130dB 0.1dB 3.5dB A F - - $50
CEM DT-8851 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C F, S - - $100
CEM DT-8852Note 5 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C F, S 32xxxNote 5 1 $200
Center 322Note 2 RS-232 31.5Hz - 8kHz 30dB - 130dB - 1.5dB A, C F, S 32000 - $200
Colead SL-5868PNote 8 RS232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1dB A, C, flat F, S - 1, 2, 3 $92
ELV ST 2232Note 4 RS-232 30Hz - 10kHz 35dB - 130dB 0.1dB 3.5dB A F - 1 €56
Extech 407750 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S - 1, 2 $260
Extech 407760Note 3 USB 31.5Hz - 8kHz 30dB - 130dB - 1.4dB A, C F, S 129920 1, 2 $145
Extech 407768 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C F, S - 1, 2 $300
Extech HD600 USB - 30dB - 130dB - 1.4dB A, C F, S 20000 1, 2 $500
Extech SDL600Note 6 RS-232/USB 31.5Hz - 8kHz 30dB - 130dB - 1.4dB A, C F, S many (SD card) 1, 2 $599
General DSM8922 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB - A, C F, S  ? 1 $178
General DSM3200DL RS-232 - 30dB - 130dB - - - F, S 32000 1, 2, 3 $300
HoldPeak HP-844A USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 4700 1 €74
Lutron SL-4012 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S - 1, 2 $145
Lutron SL-4013 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB - A, C F, S - - $240
Lutron SL-4112Note 7 RS-232/USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB - A, C F, S 1600 - $278
Lutron SL-4113GNote 7 RS-232/USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB - A, C F, S - 1, 2
Nicety SL-811 RS-232 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S - - -
PCE PCE-222Note 4 RS-232 30Hz - 10kHz 35dB - 130dB 0.1dB 3.5dB A F - - €58.31
PCE PCE-SDL 1Note 3 USB 31.5Hz - 8kHz 30dB - 130dB - 1.4dB A, C F, S 129920 1 €99.96
PCE SU 130Note 8 RS232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1dB A, C, flat F, S - - €124
PeakTech 8005Note 5 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB - F, S 32000 1, 2, 3 €145
Reed C-322 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB  ?  ? 32000 1 $336
Reed SD-4023Note 1 RS-232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C(?) 200ms, 500ms many (SD card) 1, 2 $204
Reed ST-173Note 3 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 129920 1 $139.-
Sauter SU 130Note 8 RS232 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1dB A, C, flat F, S - - €105
Sinokit SK1356Note 9 USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 4700 - $71
SmartSensor AR834 USB 31.5Hz - 8.5kHz 3dB - 130dB (typo?) 0.1dB 1.5dB A, C F, S - - -
SmartSensor AR844 USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 4700 1, 2, 3, 4 $86
SmartSensor AR854 USB 20Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 10000 - $182
Tecpel DSL-331 RS-232 31.5Hz - 8Khz 30dB - 130dB 0.1dB 1.5dB A, C F, S 32000 1, 2 £160
TES TES-1350R RS-232 31.5hZ - 8kHz 35dB - 130dB 0.1dB 2dB A, C F, S - - $205
Tenmars TM-103 USB 30Hz - 8kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 14000 - $220
Tondaj SL-814 USB/serial 31.5Hz - 8.5kHz 40dB - 130dB 0.1dB 2dB A, C F, S - - $27
Tondaj TDJ 834 USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S 43690 (?) 1, 2, 3 $89
Voltcraft DL-160SNote 3 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C F, S 129920 (?) list £85
Voltcraft DL-161S USB 31.5Hz - 8kHz 30dB - 130dB 0.01dB (typo?) 1.4dB A, C F, S 129900 (typo?) - €99
VOLTCRAFT SL-451Note 5 USB 31.5Hz - 8kHz 30dB - 130dB 0.1dB 1.4dB A, C F, S 32000 (32600?) 1, 2 €255
Wensn WS1361 USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S - 1, 2, 3 $47
Wensn WS1361C USB 31.5Hz - 8.5kHz 30dB - 130dB 0.1dB 1.5dB A, C F, S many (SD card) 1, 2, 3 $47

1 It is unclear if the meter can stream data live, or only log to SD card. Does not appear to be compliant to IEC 61672-1:2003: time-weighted measurements are wrong, and frequency-weighting C is also wrong.
2 More likely made by Tecpel.
3 CEM DT-173 = Voltcraft DL-160S = Extech 407760 = PCE PCE-SDL 1 = Reed ST-173. Note: The original manufacturer is CEM, the rest are rebadges. Some explicitly specify a resolution of 0.1dB (CEM doesn't specify any at all), and the Reed ST-173 specifies an accuracy of 1.5dB which is likely a typo (CEM and all other rebadges specify 1.4dB).
4 CEM DT-2232 = PCE PCE-222 = ELV ST 2232.
5 CEM DT-8852 = PeakTech 8005 = VOLTCRAFT SL-451. Note: The CEM DT-8852 has a datalogging function, but it is unclear how many entries it can actually store. CEM says 32700, other sites claim 32600 or 32600 or 32000.
6 The device usually logs to SD card, but according to the manual it is also possible to get live data output via the "RS232 output jack" and the "optional 407001 software".
7 The "RS232 jack" can apparently be used via the "USB-01" USB cable or the "UPCB-02" RS232 cable. There is a "SW-U801-WIN data acquisition software" and a "SW-DL2005 data logger transfer software".
8 Colead SL-5868P = PCE SU 130 = Sauter SU 130.
9 Benetech GM1356 = Sinokit SK1356.

Internal details:

Device PC interface PC interface chip PC protocol Architecture/chip
Colead SL-5868P RS232 Nuvoton W78E052D custom (binary), 2400/8n1 Nuvoton W78E052D
PCE PCE-222 RS232 Fortune Semiconductor FS9711_LP3  ? Fortune Semiconductor FS9711_LP3
Tondaj SL-814 USB/serial Prolific PL2303HX custom (binary), 9600/8e1 Atmel ATmega8/L
Voltcraft DL-160S USB SiLabs F321  ? SiLabs F321