larson davis

Larson Davis core competencies include sound level meters 831; human vibration meters;  dosimeters; calibrators;  audiometric calibration systems;  microphones and accessories;  software products; and acoustic test systems. Larson Davis products are used for audiometer calibration; building acoustics, environmental noise and community noise monitoring; industrial hygiene, worker hearing conservation, and hand-arm, whole body and general vibration measurement.
SLM 831C
The SoundAdvisor Sound Level Meter Model 831C is designed to make noise measurement easy. Due to its color display, connectivity, extensive software features and small form factor the SoundAdvisor is an ideal choice for handheld operation.
The HVM200 is a small rugged vibration meter with built in Wi-Fi that can be used to measure hand-arm, whole body and general vibration. It includes the metrics and frequency weightings needed to measure human vibration. 
Aud Cal
The SoundAdvisor™ Audiometer Calibration System AudCal is a field-ready solution for fast, comprehensive audiometer calibration. The system combines the power and versatility of the SoundAdvisor Model 831C Sound Level Meter with the accessibility and functionality of the G4 LD Utility Software.
1 ” Mic Class 1 Calibrator CAL250
IEC 60942 Class 1 Handheld Sound Level Calibrator for 1″ microphones at 251.2 Hz Used for Sound Level Meters and Other Sound Measuring Equipment. The Larson Davis Model CAL250 is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment. The CAL250 delivers a full 114.0 dB level output signal @ 251.2 Hz.
The Larson Davis SoundExpert® LxT Sound Level Meter is a full-featured meter designed for general product evaluation and noise monitoring applications. SoundExpert LxT comes with a graphic display and a fixed set of firmware options applicable for these applications.
Powered with SoundAdvisor Sound Level Meter Model 831C, Model NMS-SE-831C with 831C-SR firmware is a rugged, portable solution that can make sound recordings for easier noise source identification. Powered via 8 D-cell battery pack, the system can continuously make measurements for one week.
Acoustic Couplers & Ear Simulators
Whether testing an earphone, hearing aid or audiometer, there is a Larson Davis coupler to satisfy your requirements. Due to the rugged, stainless steel construction and product quality you can rely on your Larson Davis coupler or ear simulator to work dependably for many years.
1/2 ” Mic Class 1 Calibrator CAL200
The Larson Davis CAL200 Sound Level Calibrator is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment. It can provide an output level of either 94.0 or 114.0 dB (switch-selectable) at a frequency of 1 kHz.
SLM 821
The SoundExpert® Model 821ENV does just that with a large touch display viewable in any condition. Whether making handheld noise measurements or measuring environmental noise for several weeks.
Spartan 821
Spartan Sound Level Meters Series 821IH from Larson Davis, designed for Occupational Health and Safety professionals, offers all the tools needed for workplace noise and noise exposure measurements, including built-in workplace noise dose metrics and selectable time and frequency weightings.
Spartan 730
The Spartan™ Noise Dosimeter Model 730 is designed to make worker noise dose measurements easy and fast. With Spartan, control test setup and measurements directly from the Larson Davis Atlas™ mobile app. All essential tasks can be completed from your iOS™  or Android™ device
Spartan 730IS
The Spartan Intrinsically Safe Noise Dosimeter Model 730IS is designed to safely make noise exposure measurements, even for workers in explosive environments, such as those found in the petrochemical industry and pharmaceutical manufacturing. Simple design and intuitive setup make getting worker noise dose measurements easy and fast.