ACOEM (01dB) FUSION Current WiFi, LAN (RJ45), GPS, 4G modem (FUSION 4G; opt… 24 h Bedrock Bedrock AM100 Current 2 1/1 and 1/3 800, 1600 or 3200 lines, 100 Hz to 20 kHz 24 to 118 dB (low range); 42 to 124 dB (high ra… WiFi, LAN, Bluetooth, USB 2.0 600 g 4 h Bedrock Bedrock Elite i5 Current 1/1 and 1/3 32768 lines 27 to 130 dB(A) full range with the standard 1/… USB-C 530 g 4 h Bedrock Bedrock Elite i9 Current 1/1 and 1/3 32768 lines 20 to 130 dB(A) full range with the standard 50… USB-C 530 g 4 h Bedrock Bedrock Elite i10 Current 2 1/1 and 1/3 32768 lines 20 to 130 dB(A) full range with a 50 mV/Pa micr… USB-C, WiFi, Bluetooth 5.0, TRRS 3.5 mm output 600 g 4 h Bedrock Bedrock SM50 Current 1/1 and 1/3 FFT analyser (line count not published) 30 to 122 dB with the included microphone; elec… USB 530 g 4 h Bedrock Bedrock SM90 Current 1/1 and 1/3 FFT analyser (line count not published) 30 to 122 dB with the included microphone; elec… USB 530 g 4 h Casella CEL-24x Current 1 None 30 to 100 or 60 to 130 dB, selectable USB 2.0 Mini-B, AC output, DC output (option) 245 g 35 h Casella CEL-63x Current 1 1/1 and 1/3 20 to 140 dB RMS USB (CMC51 cable), AC output, DC output 332 g 15 h Casella CEL-620 Current 1 1/1 20 to 140 dB RMS, single range USB 2.0 Mini-B (mass storage) 295 g 20 h Cirrus Research Optimus+ Environmental Sound Level Meter Current 1 1/1 and 1/3 20 to 140 dB, single range USB type B, Bluetooth Low Energy, AC/DC output,… 300 g 12 h Cirrus Research Optimus+ Industrial Sound Level Meter Current 1 1/1 20 to 140 dB, single RMS range USB type B, Bluetooth Low Energy, AC/DC output… 300 g 12 h Delta OHM (Senseca) HD2010UC Current 1 None 30 dBA to 143 dB peak USB 1.1, RS-232C (300 to 115200 baud), AC line… 740 g Delta OHM (Senseca) HD2010UC/A Discontinued 1 1/1 and 1/3 30 dBA to 143 dB peak USB 1.1, RS-232 (300 to 115200 baud), line outp… 740 g Delta OHM (Senseca) HD2110L Discontinued 1 1/1 and 1/3 narrow-band FFT 12.5 Hz to 22 kHz (FFT option);… up to 140 dB with the supplied MC21E microphone RS-232C and USB via M12 connector, digital audi… Delta OHM (Senseca) XPT800 Current 1 1/1 and 1/3 up to 16,000 lines, simultaneous with octave sp… A: 20 to 137 dB; C: 22 to 137 dB; Z: 25 to 137… USB-C OTG 2.0, WiFi IEEE 802.11 b/g/n, Ethernet… 505 g 24 h Delta OHM (Senseca) XPT801 Current 1 1/1 and 1/3 21 dBA to 140 dB peak (117 dB linearity range) USB-C 2.0, WiFi, Ethernet 10/100, LTE/4G (optio… 24 h HBK (Brüel & Kjær) B&K 2245 Current 1 1/1 and 1/3 22.7 to 140.6 dB(A) single range USB-C, Ethernet over USB, WiFi 2.4 GHz, Bluetoo… 370 g 13 h HBK (Brüel & Kjær) B&K 2250 Discontinued 1 1/1 and 1/3 BZ-7230 FFT option (line count not stated in BP… about 16.6 to 140 dB(A) dynamic range with Type… USB 2.0 (OTG Micro-AB and Standard-A), LAN (RJ4… 650 g 11 h HBK (Brüel & Kjær) B&K 2270 Discontinued 2 1/1 and 1/3 BZ-7230 FFT option (line count not stated in BP… about 16.6 to 140 dB(A) dynamic range with Type… USB 2.0 (OTG Micro-AB and Standard-A), LAN (RJ4… 650 g 10 h HBK (Brüel & Kjær) HBK 2255 Current 1 1/1 and 1/3 22.7 to 140.6 dB(A) single range (Type 4966-Z-0… USB-C, Ethernet over USB, WiFi 2.4 GHz, Bluetoo… 409 g 13 h Larson Davis Model 831 Discontinued 1 1/1 and 1/3 831-FFT option (line count not stated in manual… 16 to 140 dB with PRM831 preamplifier and 377B0… USB 2.0 host and peripheral, AUX connector, I/O… 8 h Larson Davis SoundAdvisor 831C Current 1 1/1 and 1/3 option 831C-FFT (FFT analysis and tone assessme… single range; dynamic range > 120 dB; peak over… USB Mini-B, Ethernet (831-INT-ET or DVX012 adap… 532 g 8 h Larson Davis SoundExpert 821ENV Current 1 1/1 and 1/3 17 to 140 dB(A) typical dynamic range USB-C, Bluetooth LE 4.1 383 g 40 h Larson Davis SoundTrack LxT Discontinued 1 1/1 and 1/3 17 to 118 dB(A), 19 to 118 dB(C), 24 to 118 dB(… USB 2.0, auxiliary USB for storage, AC/DC outpu… 513 g 16 h Larson Davis Spartan 821IH Current 1 1/1 and 1/3 17 to 140 dB(A) typical dynamic range USB-C (USB 2.0), Bluetooth 382.5 g Norsonic Norsonic Nor103 Current 1 None A 30 to 137 dB; C 40 to 137 dB (wide range) 105 g 9 h Norsonic Norsonic Nor131 Current 1 1/1 and 1/3 -10 to 137 dB at 50 mV/Pa, single 120 dB range USB 2.0, analogue output (100 mV full scale), T… 380 g 8 h Norsonic Norsonic Nor140 Current 1 1/1 and 1/3 8000 lines, 1.46 Hz resolution (option 14) about -10 to 137 dB at 50 mV/Pa, single 120 dB… USB 2.0, RS-232, 3 digital inputs, 4 digital ou… 410 g 8 h Norsonic Norsonic Nor145 Current 1 1/1 and 1/3 8192 lines standard, 16384 lines with ultrasoun… 17 to 137 dB(A) RMS, single 120 dB range WLAN, LAN, USB host, 4G/LTE modem (option Nor14… 535 g 8 h Norsonic Norsonic Nor150 Current 2 1/1 and 1/3 option 13; 8192 lines, 1.46 Hz resolution (1638… 17 to 137 dB(A) RMS, single 120 dB range, plus… LAN, USB host, digital I/O, GPS (option 1), bui… 700 g 8 h NTi Audio XL2 Audio & Acoustic Analyzer Current 1 1/1 and 1/3 143 bins per display range; zoom FFT to 0.4 Hz… 17 to 137 dB(A) with M2230; 21 to 144 dB(A) wit… USB mini-B, digital I/O, XLR and RCA inputs, 3.… 480 g 4 h NTi Audio XL3 Acoustic Analyzer Current 1 1/1 and 1/3 17.1 to 137.8 dB(A) with M2230; 17.4 to 138.3 d… USB-C, USB-A, WiFi 2.4 GHz, LAN (via USB adapte… 500 g 8 h Ono Sokki LA-1411 Current 1 None A: 26 to 135 dB; C: 31 to 135 dB; Z: 36 to 135… AC output, DC output 360 g 8 h Ono Sokki LA-1441A Current 1 None A: 26 to 135 dB; C: 31 to 135 dB; Z: 36 to 135… USB 2.0 Full Speed (virtual COM port), RS-232C,… 360 g 8 h Ono Sokki LA-3260 Discontinued 1 1/1 and 1/3 400 lines (option LA-0353) A: 26 to 140 dB; C: 30 to 140 dB; Z: 36 to 140… USB (mass storage, mini-B), RS-232C, SD card, A… 630 g 8 h Ono Sokki LA-3560 Discontinued 1 1/1 and 1/3 400 lines (option LA-0353) A: 27 to 140 dB; C: 32 to 140 dB; Z: 38 to 140… USB (mass storage, mini-B), RS-232C, SD card, A… 8 h Ono Sokki LA-3570 Discontinued 1 1/1 and 1/3 400 lines (option LA-0353) A: 22 to 130 dB; C: 28 to 130 dB; Z: 36 to 130… USB (mass storage, mini-B), RS-232C, SD card, A… 680 g 8 h Ono Sokki LA-4441A Current 1 None A: 27 to 135 dB; C: 30 to 135 dB; Z: 35 to 135… USB 2.0 Full Speed (virtual COM port), RS-232C,… 360 g 8 h Ono Sokki LA-7200 Current 1 1/1 400, 800 or 1600 lines (option LA-0703) A: 23 to 138 dB; C: 30 to 138 dB; Z: 36 to 138… USB 2.0 (micro-B), RS-232C (via Multi I/O cable… 540 g 12 h Ono Sokki LA-7500 Current 1 1/1 and 1/3 400, 800 or 1600 lines (option LA-0703) A: 24 to 138 dB; C: 32 to 138 dB; Z: 38 to 138… USB 2.0 (micro-B), RS-232C (via Multi I/O cable… 540 g 12 h Ono Sokki LA-7700 Current 1 1/1 and 1/3 400, 800 or 1600 lines (option LA-0703) A: 20 to 128 dB; C: 28 to 128 dB; Z: 34 to 128… USB 2.0 (micro-B), RS-232C (via Multi I/O cable… 540 g 12 h Pulsar Instruments Nova Current 1 1/1 20 to 140 dB RMS, single range USB 2.0 Mini-B, 3.5 mm AC output, multipin I/O… 440 g 30 h Rion Rion NA-28 Discontinued 1 1/1 and 1/3 8000 lines, 20 kHz range (NX-28FT card) A 25 to 140 dB; C 33 to 140 dB; Z 38 to 140 dB USB mini-B, AC output, DC output, comparator ou… 730 g 15 h Rion Rion NL-28 Current 1 None A 30 to 137 dB; C 36 to 137 dB USB-C 160 g 9 h Rion Rion NL-38 Current 1 None A 32 to 137 dB; C 40 to 137 dB; Z 45 to 137 dB USB-C 190 g 9 h Rion Rion NL-52 Discontinued 1 1/1 and 1/3 NX-42FT option Rion Rion NL-53 Current 1 1/1 and 1/3 NX-43FT option A 25 to 138 dB; C 33 to 138 dB; Z 38 to 138 dB USB-C, LAN (with NX-43EX), RS-232C, SD card, co… 400 g 16 h Rion Rion NL-62 Discontinued 1 1/1 and 1/3 NX-42FT option Rion Rion NL-63 Current 1 1/1 and 1/3 NX-43FT option (adds 240 Hz and 1200 Hz samplin… A 25 to 138 dB; C 33 to 138 dB; G 43 to 138 dB;… USB-C, LAN, RS-232C, SD card, comparator output… 400 g 12 h Sinus Messtechnik Boogie Current 1 None 30 to 130 dB, automatic and manual ranging RS232, RS232/USB adapter 168 g 120 h Sinus Messtechnik Tango Discontinued 1 None 30 to 140 dB (LAeq) USB 250 g 120 h Sinus Messtechnik Tango Plus Current 1 1/1 and 1/3 25 to 140 dB (LAeq) USB 2.0, printer port, RS232 (optional adapter)… 290 g 40 h Soft dB Piccolo Discontinued 1 1/1 37 to 105 dBA USB 120 g 200 h Soft dB Piccolo II Current 1 1/1 and 1/3 400 lines, 6 bandwidths from 17.2 kHz down to 5… Low range 30 dBA to 110 dB peak; high range 46… USB (micro-B), 3.5 mm auxiliary input 115 g 48 h Svantek Svantek SV 971A Current 1 1/1 and 1/3 17 dB(A) Leq to 140 dB(A) peak (total range) USB-C, Bluetooth, WiFi/LAN via SvanLINK 225 g 16 h Svantek Svantek SV 973A Current 1 1/1 and 1/3 25 dB(A) Leq to 141 dB(A) peak (total range) USB-C, Bluetooth 5.2 225 g 20 h Svantek Svantek SV 977D Current 1 1/1 and 1/3 option (line count not stated on page) 16 dB(A) Leq to 140 dB(A) peak (total range) USB-C, RS-232, I/O, Bluetooth 5.2, GPS 600 g 12 h Svantek Svantek SVAN 977 Discontinued 1 1/1 and 1/3 option SV 977_4 (line count not stated in manua… low range 25 dB(A) RMS to 123 dB peak; high ran… USB 1.1, RS-232 via SV 55, I/O (3.5 mm), Blueto… 12 h Svantek Svantek SVAN 979 Current 1 1/12 up to 1600 lines, up to 25.6 kHz 12 dB(A) Leq to 140 dB(A) peak (total range) USB, RS-232, I/O, Bluetooth 600 g 8 h TSI Quest OmniTrak Sound Level Meter Class 2 Module (7591-09) Current 1 40 to 140 dB RMS USB-C, Bluetooth (to Smart Station), WiFi (via… 220 g 14 h TSI Quest Quest Sound Detector SD-200 Current 1 None 45 to 130 dB (linearity/dynamic range) USB (charging) 125 g 50 h TSI Quest Quest Sound Examiner SE-400 series Current 1 None 30 to 140 dBA (single range) USB 2.0 (mini-USB), RS-232 (not on IS models),… 367.5 g 18 h TSI Quest Quest SoundPro SE/DL Current 1 1/1 and 1/3 0 to 140 dB overall, over 8 individual ranges o… USB 2.0 (mini-USB), RS-232 (10-pin auxiliary co… 540 g 10 h