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Our newest Sound Level Meter available to rent is Larson Davis’ SoundExpert Sound Level Meter Model 821ENV. SoundExpert offers unprecedented ease of use with a responsive, touch screen display, plus quick startup, long battery life, and more.
View Datasheet for complete specifications
| Internal Memory | 8 GB standard, Up to 256 GB, micro SD card |
| Dynamic Range | 123 dB (27 – 140 dB standard range) |
| Frequency Weightings | A, C, and Z (simultaneous) |
| Time Weightings | Slow, Fast, and Impulse |
| Power Supply | Internal rechargeable batteries provide over 18 hours of operation |
Preconfigured handheld SoundExpert Sound Level Meter Model 821 Kit provides an easy out of the box testing solution for short term studies in controlled environments or for use with your own longer-term power and environmental protection.
| Model | Description |
|---|---|
| K821ENV-D | SoundExpert Model 821ENV-D Class 1 Sound Level Meter with data logging up to 100 ms, measurement history, community noise, 1/1 & 1/3 octave filters, screen protector, free-field microphone (50mV/Pa), preamplifier (PRM821), & USB-C cable (CBL242-03) |
| K831C | Logging Analyzer Kit with 1/1 and 1/3 Octave |
| K831C‑H | Logging Analyzer Kit with 1/1 and 1/3 Octave band analysis plus sound recording |
Outdoor noise monitoring kits include meter, microphone, preamplifier, user selectable tripod, environmental protection kit, and battery case. For more detailed information, please visit our page on outdoor noise monitoring kits.
| Model | Description |
|---|---|
| KNMS048 | SoundExpert Model 821-based outdoor Noise Monitoring Kit. Includes full-featured logging and selectable 1/1 and 1/3 octave, microphone and preamplifier with environmental protection, and accessories. Select tripod, battery options, and/or line power. |
| KNMS048-SLA-S | SoundExpert Model 821-based outdoor Noise Monitoring Kit with solar power. Includes full-featured logging and selectable 1/1 and 1/3 octave, microphone and preamplifier with environmental protection, and accessories. |
821 Kits provide an easy out of the box solution for most testing situations. If additional hardware or software are needed for more complex setups, The Modal Shop can help.
| Model | Description |
|---|---|
| Included in Handheld Kit Model K821ENV-D | |
| 821 | Sound Level Meter |
| 377B02 | 1/2" freefield microphone (other options available) |
| PRM821 | Preamplifier |
| EXC010 | Microphone extension cable, 10 ft |
| WS001 | Windscreen, 3.5” |
| CCS060 | Hard shell shipping and carrying case for SoundExpert Models 721 & 821 and Spartan Models 721 & 821 Sound Level Meters |
| X21-SD-8GB | 8 GB, industrial grade microSD memory chip for use in SoundExpert 721/821 and Spartan 721/821 |
| PS045 | Universal AC power supply with USB-C output connector |
| CBL242-03 | USB C to USB C cable with USB-C to USB-A adapter |
| CAL200 | Acoustic Calibrator, 94 and 114dB |
| M821.23 | Screen Protector (typically installed) |
| Software | G4 LD Utility software download to connect, control, download and view data from multiple instruments |
| USB Drive | G4 LD Utility software, SoundExpert Reference Manual, Digital Calibration Certificates |
| Optional Add-ons to Handheld Kit | |
| PSA046 | Qi charger pad with USB-C connector including pad and USB cable (CBL242-03). Does not include power supply (PSA045) |
| CBL042 | AC/DC output cable, 6ft to RCA/BNC, 3.5 mm plug |
| Included with All Outdoor Kits | |
| 821 | Sound Level Meter |
| 377B02 | Free-field Microphone |
| PRM821 | Preamplifier |
| WS001 | Windscreen, 3.5” |
| X21-SD-8GB | 8 GB, industrial grade microSD memory chip for use in 721 and 821 meters |
| PSA045 | Universal AC power supply with USB-C output connector |
| CBL242-03 | USB-C to USB-C cable, 3 ft. Includes USB-C to USB-A adapter |
| KEPS2116 | Environmental protection kit for 1/2 in preamplifiers. Includes EPS2116 with windscreen, desiccant, and bird spike in custom case with ACC009 monopole and accessories. Tripod mounting options for 1/4-20 thread (TRP001), 1.5 in. pipe (TRP003) and 3/4 in. NPT pipe included. |
| CCS061 | Environmental protection case for SoundExpert 721 and 821. Includes cable port and ADP116 power distribution block |
| CBL241-01 | Power cable, 1 ft, connects 721 or 821 to power distribution block |
| CBL225-01 | Power cable, 1 ft. Connects SLA battery and power distribution block |
| EXC010 | Microphone Extension Cable, 10 ft |
| EPS048-OPT3x | Superclamp option added to CCS061. Allows Monopole ACC009 to mount microphone, preamplifier and EPS2116 outdoor protection on side of case |
| CAL200 | Acoustic Calibrator, 94 and 114dB |
| SWW-Utility-G4 | G4 LD Utility software to connect, control, download and view data from multiple instruments |
| USB Drive | G4 LD Utility software, SoundExpert Reference Manual, Digital Calibration Certificates |
| Power Options included with KNMS048 Kit (pick one) | |
| BAT011 / PSA040 | Battery, 12V Sealed Lead Acid battery SLA, 21Ah, with power supply |
| BAT024 | 12x D cell battery holder with fuse and Anderson distribution connector; batteries not included |
| Power Options included with KNMS048-SLS-S Kit | |
| SLP004 | Solar panel, 30 Watt, for use with SoundExpert 721/821 based EPS048 and NMS048 systems. Includes CCS063 case |
| TRP024 | Stainless steel tripod for SLP004 solar panel with canvas bag |
| TRP024-MNT4 | Mounting bracket to mount SLP004 solar panel to TRP024 Tripod |
| CBL226-1/2 | Power cable, 6 in. Connects PSA047 Solar Charger and power distribution block |
| CBL228-04 | Power cable, 4 ft. Connects Solar Panel and PSA047 Solar Charger |
| PSA047 | Solar Charge Controller for use with 721 or 821, 5A |
| PSA039 | Power supply to add AC power to Solar |
| Optional Add-ons to Outdoor Kit | |
| PSA046 | Qi charger pad with USB-C connector. Includes pad and CBL242-03 USB cable. Does not include PSA045 power supply. |
| CBL042 | AC/DC output cable, 6ft to RCA/BNC, 3.5 mm plug |
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