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Direct from China's foremost acoustic instrumentation facility, delivering metrologically certified sound calibrators, acoustic imagers, sound level meters, and precision microphones to engineering centers across Hungary.
Ultra-stable 94.0 dB / 114.0 dB dual sound pressure reference generator with quartz-locked 1000 Hz frequency, built-in atmospheric pressure and temperature auto-compensation.
Advanced real-time noise source localization and visual sound mapping camera, ideal for Hungarian automotive NVH tests and industrial plant leak detection.
Modular Class 1 sound level meter with 1/1 and 1/3 octave real-time frequency analysis, 24-bit AD conversion, and comprehensive environmental noise metrics.
Free-field prepolarized 1/2" condenser microphone cartridge delivering an ultra-wide dynamic range, flat acoustic response up to 20 kHz, and long-term stability.
Hungary has solidified its position as Central and Eastern Europe's foremost manufacturing hub, propelled by massive foreign direct investments in automotive manufacturing, lithium-ion battery gigafactories, and precision electronics.
Hungary's accession to EU metrological harmonizations mandates strict adherence to acoustic measuring instrument verifications under IEC 60942 (Sound Calibrators), IEC 61672 (Sound Level Meters), and national decrees such as the 27/2008. (XII. 3.) KvVM-EüM joint regulation on environmental noise and vibration limits.
Every accredited noise assessment conducted across Hungarian territories—from the automotive clusters in Győr, Kecskemét, and Debrecen to municipal noise mapping in Budapest—legally requires on-site acoustic calibration before and after every measurement session. A portable, high-precision noise meter calibrator is the essential cornerstone that guarantees the legal validity of acoustic data submitted to the Hungarian National Metrology Authority (Budapest Főváros Kormányhivatala - Metrológiai Hatóság) and environmental inspectorates.
From Audi Hungaria in Győr to Mercedes-Benz in Kecskemét and BMW in Debrecen, tier-1 suppliers require routine acoustic calibrator verifications for quality testing and end-of-line acoustic checks.
Mega-scale battery manufacturing complexes across Debrecen, Göd, Komárom, and Iváncsa demand continuous 24/7 noise monitoring networks calibrated to class-leading precision.
Understanding why Hangzhou Aihua Instruments' calibrators are favored by laboratories, environmental engineers, and industrial auditors across Europe.
A noise meter calibrator (or acoustic calibrator) generates a known, stable sound pressure level inside a closed acoustic coupler. The Aihua sound calibrator series harnesses a high-grade piezoceramic driver element paired with precision semiconductor pressure feedback, generating reference tones at precisely 1000 Hz with negligible total harmonic distortion (THD < 1.0%).
Because the 1000 Hz reference tone falls at the center of the acoustic A-weighting, C-weighting, and Z-weighting curves (where weighting attenuation is exactly 0 dB), engineers and calibration technicians in Hungary can calibrate sound level meters without applying manual frequency-weighting corrections.
• Nominal Sound Pressure: 94.0 dB ± 0.2 dB (Class 1) and 114.0 dB ± 0.2 dB
• Quartz-Controlled Frequency: 1000 Hz ± 0.5%
• Real-Time Atmospheric Pressure & Ambient Temperature Compensation
• Compatible with 1", 1/2", and 1/4" standard measurement microphones (IEC 61094 compliant)
Hungary's continental climate experiences substantial barometric fluctuations and seasonal temperature swings between scorching summers and freezing Pannonian winters. Standard acoustic calibrators suffer from sound pressure shifts when the ambient air density changes.
Aihua's intelligent sound calibrators incorporate built-in barometric pressure sensors, temperature sensors, and high-speed microprocessors that automatically modulate the driving voltage of the acoustic transducer. This real-time internal correction guarantees that regardless of whether testing takes place at Lake Balaton or inside a heated cleanroom in Debrecen, the calibrator produces an unwavering 94 dB / 114 dB SPL without requiring manual barometric lookup tables.
How Aihua calibrators conform to Hungarian and International Electrotechnical standards:
Complies with the strictest European performance tolerances for reference sound sources. Essential for type-approved acoustic investigations and court-admissible noise reports in Hungary.
Our Hangzhou manufacturing facilities follow rigorous multi-tiered quality management systems, complete with automated cleanroom transducer assembly and climatic stress screening.
Fully certified with European electromagnetic compatibility (EMC) standards and environmental material directives, ensuring frictionless import and commercial deployment throughout Hungary.
Engineered to solve complex acoustic challenges across diverse commercial and scientific sectors in Central Europe.
Hungarian automotive R&D facilities utilize our Class 1 sound calibrators to verify microphone arrays in acoustic wind tunnels, chassis dynamometers, and reverberation chambers, ensuring pristine signal-to-noise ratio in vehicle acoustic benchmarking.
Machinery manufacturers and chemical processing plants in Miskolc and Székesfehérvár rely on Aihua calibrators for routine occupational noise dosimetry and factory boundary compliance according to Hungarian workplace safety directives.
Environmental engineering firms in Budapest deploy Aihua sound level meters and calibrators for long-term noise monitoring near the M0 expressway, railway corridors, and Budapest Ferenc Liszt International Airport.
Hungarian occupational health clinics and hospitals calibrate diagnostic audiometers with Aihua's specialized artificial ears and sound calibrators, guaranteeing accurate clinical hearing loss diagnostics.
Acoustic consultants verify airborne and impact sound insulation in commercial and residential developments across Szeged and Győr, relying on class-certified calibrator references for tapping machines and omnidirectional sound sources.
Universities such as the Budapest University of Technology and Economics (BME) integrate Aihua measurement microphones, preamplifiers, and calibrators into academic acoustic research and electroacoustic engineering curricula.
A 30-Year Legacy of Acoustic Innovation, Advanced Manufacturing, and Global Metrological Partnership.
Founded in 1992, Aihua Instruments is a Hangzhou-based 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 internationally recognized brand, our growth reflects a relentless commitment to technological excellence and customer satisfaction. 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.
Our product range covers sound level meters, noise dosimeters, calibrators, audiometric calibration systems, microphones and accessories, software products, and acoustic test systems — over 60 varieties in total. We serve diverse application fields including environmental noise monitoring, building acoustics, occupational health and safety, vehicle noise testing, and audiometer calibration.
Your Trusted Partner in Acoustic & Vibration Measurement Serving Hungarian Enterprises with Factory-Direct Excellence.
Our fully equipped manufacturing facility features advanced automated test systems, ensuring every product meets strict quality 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 monitoring technologies, and supports OEM/ODM partnerships.
Our management systems and products hold ISO 14001, ISO 45001, CE, and RoHS certifications, demonstrating our commitment to environmental responsibility, workplace safety, and global compliance.
We export to over 40 countries across Europe, North America, South America, and Asia, with a strong reputation built on consistent quality and competitive pricing.
Backed by professional engineers, we deliver responsive, expert support throughout the entire product lifecycle, ensuring our customers always have the assistance they need.
Explore our full line of measurement preamplifiers, low-noise microphones, vibration calibrators, and sound level meters tailored for Hungarian industrial applications.
Essential details regarding customs clearance, calibration certificates, OEM customization, and delivery to Hungary.
Yes. Every noise meter calibrator shipped from our factory is individually tested and accompanied by a detailed Factory Calibration Certificate stating nominal sound pressure levels (94.0 dB and 114.0 dB), exact frequency (1000 Hz ± 0.5%), total harmonic distortion (THD), and calibration uncertainty traceable to international measurement standards (NIM/PTB/NIST).
We offer comprehensive international shipping options including express air freight (DHL, FedEx, UPS) directly to Budapest, Debrecen, or Győr, as well as DDP (Delivered Duty Paid) and CIP terms. All shipments include CE declarations of conformity, RoHS documentation, and HS code classification (HS: 9031.80) for rapid EU customs clearance.
Absolutely. Our calibrator cavity is precision-machined to standard 1/2-inch microphone specifications compliant with IEC 61094-4. We supply precision-machined 1/4-inch and 1-inch adapters, ensuring seamless compatibility with measurement microphones from Aihua as well as other international acoustic brands used across Hungarian testing laboratories.
Partner directly with China's dedicated acoustic metrology manufacturer. Contact our technical export division today for factory-direct quotations, technical datasheets, and sample evaluations tailored for the Hungary market.
