- Home
- About Us
- Products
- Application
- Resource
- News
- Contact Us
Leave Your Message
Engineered for metrology laboratories, cantonal environmental agencies, mechanical inspection institutes, and watchmaking precision workshops across Zurich, Geneva, Basel, and Vaud.
Switzerland maintains one of the world's most comprehensive and rigorous environmental noise frameworks, driven by federal legislation, high urban density, and world-renowned precision manufacturing.
Under the Swiss Federal Noise Abatement Ordinance (Lärmschutz-Verordnung LSV / Ordonnance sur la protection contre le bruit OPB), stringent impact thresholds (Immissionsgrenzwerte) and planning values (Planungswerte) apply to road traffic, railway transit, shooting ranges, and industrial plants across all cantons. Precision Class 1 sound level meters with statistical percentile metrics (L10, L50, L90, Lmax, Leq) are legally required for enforceable environmental verification.
The Swiss Society of Engineers and Architects (SIA) standard 181 defines rigorous acoustic insulation targets for multi-family residential buildings, commercial office developments, and hospitality properties. Sound level meters with integrated multi-channel reverberation time (RT60) calculation, airborne sound insulation metrics (R'w), and structure-borne impact noise evaluation (L'n,w) enable civil engineers to certify structural compliance.
The Swiss National Accident Insurance Fund (SUVA) mandates proactive workplace noise limits (LEX,8h ≤ 85 dBA) across manufacturing, metalworking, tunneling, and automated assembly sectors. Continuous dosimetric logging, peak sound pressure (Lpeak) capture, and frequency-specific octave band screening empower health and safety officers to prevent occupational hearing impairment.
Tailored acoustic hardware deployments matching the specific geographic, industrial, and infrastructural demands of Swiss municipalities, transport corridors, and manufacturing hubs.
In the luxury watchmaking workshops of Geneva, La Chaux-de-Fonds, Le Locle, and Biel/Bienne, micro-mechanical vibration and escapement acoustic noise require sub-decibel sensitivity. High-frequency prepolarized microphone cartridges and vibration analyzers assist R&D teams in identifying escapement friction, bearing imbalance, and micro-gear meshing frequencies without acoustic distortion.
Alpine topography concentrates acoustic reflections along narrow valleys. Continuous sound level stations monitor rail-wheel rolling noise, freight train braking emissions, and pass-by sound levels along SBB transport arteries and Alpine highway corridors (A2/A13), supporting cantonal mitigation noise barrier validation.
Strict night-flight curfew laws and sound footprint monitoring around Zurich Kloten (ZRH) and Geneva Airport (GVA) necessitate automated acoustic monitoring terminals with real-time weather-proof wind screens, GPS time-stamping, and event-triggered audio recording for aircraft noise event correlation.
High-tech bioreactor facilities, automated sterile packaging lines, and medtech laboratories require strict low-frequency noise regulation to avoid impacting sensitive optical instruments and vibration-sensitive cell culture apparatus. Our low-noise preamplifiers and spectral analyzers ensure pristine cleanroom operating conditions.
Founded in 1992, Aihua Instruments is an internationally renowned manufacturer specializing in precision acoustic testing and vibration measurement instrumentation. With over 30 years of unwavering dedication to the acoustic and vibration field, we have established ourselves as one of China's foremost high-tech enterprises in this domain.
From our early days as a pioneering research institute to today's globally recognized testing instrumentation brand, our growth reflects a relentless commitment to metrological accuracy, digital signal processing excellence, and global client satisfaction.
Our product range covers sound level meters, noise dosimeters, acoustic calibrators, audiometric calibration systems, microphones and accessories, specialized software products, and acoustic test systems — over 60 varieties in total. Notably, we design and manufacture our own measurement microphones in-house — from cartridge development to automated performance testing — giving us a critical quality advantage that few competitors can match.
Your trusted partner in acoustic and vibration measurement, offering end-to-end manufacturing, custom R&D, and complete metrological compliance.
Our fully equipped manufacturing facility features advanced automated test systems and anechoic test rooms, ensuring every sound level meter meets strict Class 1 / Class 2 benchmarks before leaving the factory.
Identified as a provincial High-tech Enterprise R&D Center, our dedicated engineering team continuously drives innovation in digital detection, signal processing, and remote telemetry, supporting OEM/ODM partnerships.
Our management systems and instruments hold ISO 14001, ISO 45001, CE, and RoHS certifications, demonstrating our commitment to environmental responsibility, workplace safety, and international metrology compliance.
We export to over 40 countries across Europe, North America, South America, and Asia, with an outstanding international reputation built on Swiss-grade reliability, consistent quality, and competitive factory-direct pricing.
Backed by experienced acoustic engineers, we deliver responsive technical guidance, firmware updates, and comprehensive after-sales support throughout the entire product lifecycle.
How artificial intelligence, IoT telemetry, and smart sound recognition are transforming environmental monitoring and predictive maintenance across Swiss smart cities and smart factories.
Traditional meters capture raw decibel levels; next-generation sound analyzers integrate embedded edge-AI neural networks capable of autonomously classifying noise sources in real time — distinguishing construction hammering, rail screech, drone propulsion, and road vehicle tire friction for smart municipal enforcement.
Autonomous solar-powered acoustic monitoring terminals deployed along Swiss alpine valleys and railway corridors continuously stream real-time 1/3-octave spectra, meteorological correlation data, and calibrated Leq levels to central cloud servers, providing 24/7 public reporting and cantonal compliance auditing.
Combining high-speed optical video cameras with multichannel MEMS microphone grids allows maintenance technicians in Swiss mechanical plants to "see" sound instantly, pinpointing compressed air leaks, bearing degradation, and harmonic electrical hum in heavy machinery before catastrophic downtime occurs.
Direct from the manufacturer: IEC 61672 Class 1/Class 2 compliant sound level meters, multi-parameter vibration sensors, precision acoustic calibrators, and specialized microphone accessories.
BUILT IN CHINA, TRUSTED WORLDWIDE. Equipping Swiss acoustic consultants, municipal environmental protection divisions, and precision manufacturers with state-of-the-art sound level meters, vibration analyzers, and certified acoustic calibration systems.
