OC-HY128 Sound Level Meter Class 1 Noise Logger, Construction Site Noise Monitor

OC-HY128 multifunctional sound level meter is a digital professional noise detection device belonging to Class1/Class2 grade. It can test sound pressure level with frequency & time weighting, equivalent continuous sound level, sound exposure level, statistical sound level and other noise evaluation parameters. Equipped with seven working modes including integral average, parallel measurement, statistical analysis, 24-hour monitoring, 1/1 octave analysis, 1/3 octave analysis and indoor noise test. It supports low-frequency A weighting measurement to meet secondary radiation noise testing demands. Built-in large-capacity storage, with optional Bluetooth & recording functions, widely applied in industrial environmental monitoring, factory occupational health inspection, municipal noise supervision and other fields.

• Adopts full digital circuit design, available in Class 1 and Class 2 accuracy grades, meets international professional noise testing standards.
• Integrated personal sound exposure test and noise dose measurement function to support occupational health hazard evaluation.
• Realizes stable 24-hour unattended continuous environmental noise monitoring task, supports power bank power supply and can work normally while charging.
• Optional 1/1 octave filter and 1/3 octave band spectrum analysis function to realize refined noise frequency component analysis.
• Equipped with dedicated low-frequency A frequency weighting mode, specially applicable to secondary radiation noise measurement scenarios.
• Built-in SD card data storage module, standard 8G storage capacity, maximum expandable to 32G for massive test data recording.
• Multiple optional extended configurations: real-time data recording function & Bluetooth wireless data transmission module.
• Equipped with complete analog output interface and DB9 + USB dual data output ports for data export, printing and secondary signal collection.
• Supports three time weightings (F/S/I) and three frequency weightings (A/C/Z), covering all conventional noise evaluation parameter tests.
• Equipped with 128×128 dot matrix LCD screen for clear real-time display of various noise measurement data.
• Two optional body colors for selection: white and blue.

Technical Parameter:

Main measurement indicators:	LXY(X=A、C or Z, Y=F、S or I), LXYmax, LXYmin, LCpeak, 1sLeq, Leq, LE, E, D, Leq,8hn, LN(N=1~99, choose 5), s, Lh, Ld, Le, Ln, Ldn, Lden, LAf, LCf, LZf
Frequency range:	10Hz～20kHz (Class1), 20Hz～12.5kHz (Class2)
Time weighting:	F,S,I
Frequency weighting:	A,C,Z
Detection range:	A: 30dB~130dB, C: 40dB~130dB, Z: 45dB~130dB
Sound exposure measurement range:	0.001 Pa2s～999 Pa2s and 0.278 Pa2h～9 999 Pa2h, automatic unit switching
Noise dose measurement range:	0.001%～9 999%, exchange rate 3dB, standard 85dB
Display:	128×128 dot matrix LCD
Octave filter:	1/1 Octave filter: 16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4kHz, 8 kHz and 16 kHz.
	1/3 Octave filter: 16 Hz,20 Hz, 25 Hz,31.5 Hz,40 Hz,50 Hz,63 Hz,80Hz,100Hz,125 Hz, 160 Hz, 200Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.6 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz and 20 kHz
Analog output:	1) The output jack is a 3.5mm dual-channel headphone jack. 2)DC output: The output voltage is about 15mV/dB, and the range is 450mV～1950mV. 3)AC output: The output has a linear relationship with the measured signal, and the root mean square value of the maximum AC output voltage does not exceed 2V.
Storage	8G SD card, Max 32G
Data output	DB9 male connector (pin type) is used for printing, and USB B type socket is used for data communication
Power supply	2*LR6 battery, or power bank for 24h monitoring
Size/Weight	210*68*31mm/210g
Working temperature	Class1: -10℃~50℃ Class2: 0℃~40℃

Company profile

We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipments since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

 

01. Business areas

As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications.

02. Values and ideas

Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products.

03. Global Service Network

We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service.

04. Customer Service

With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise.