Digital Decibel Meter - Wall-Mounted Noise Level Tester (30-130dB) with Alarm & Large Red LCD Display for Home, Factory
SPECIFICATIONS
Alarm Type: Sound + Flashing Display + Data Lock
Battery Included: no
Brand Name: HoldPeak
Certification: CE
Choice: yes
Frequency Response: 31.5 Hz ~ 8.5 kHz
High-concerned chemical: None
Measurement Range: 30 - 130 dB
Model Number: SW525A
Origin: Mainland China
Range: 30 ~ 130 dB
Semi-finishedproduct: No
Type: 3*3.0-inch LED Digits
semi_Choice: yes
Dear Valued Customer,
Thank you for choosing our products! All items are backed by our quality guarantee. If you have any questions or need assistance, please don’t hesitate to contact us—we’ll respond promptly to ensure your satisfaction.
[Important Notice] Product Model Differences
Please note that this link includes two different product models—choose carefully based on your needs:
T4-SW525A (Desktop Type): Ideal for fixed locations, offering high stability.
HP-882A-YE-CN (Handheld Type): Portable design for flexible movement, suitable for dynamic usage.
Please double-check your desired model before purchasing to avoid mistakes!
Digital Decibel Meter - Wall-Mounted Noise Level Tester (30-130dB) with Alarm & Large Red LCD Display for Home, Factory

Product Description
📏 High-Precision Measurement:30~130dB Range ±1.5dB Accuracy|A-Weighting & FAST Response|Ideal for Factories, Homes & Traffic Noise!
⚠️ Smart Alarm System:Sound+Light Alert & Data Lock! Custom Threshold (50~130dB)|Auto Flashing + 2-Min Alarm for Safety.
🔧 Flexible Installation:Wall Mount/Tripod Ready! Built-in Hook + 1/4" Copper Nut|24/7 Monitoring in Workshops/Offices/Homes.
📦 Plug & Play Kit:Meter + USB Cable + Manual + Warranty Card|Powered by DC5V 1A|No Extra Accessories Needed!
🛡️ Durable Design:-10~60°C Storage|0~40°C Operation|Dust/Corrosion Resistance|453g Lightweight|Professional Quality!
Critical Product Specifications
Category |
Parameter |
Specification |
Measurement |
Range |
30 ~ 130 dB |
Accuracy |
±1.5 dB (at 94dB@1kHz) |
|
Frequency Weighting |
A-Weighting |
|
Frequency Response |
31.5 Hz ~ 8.5 kHz |
|
Time Weighting |
FAST |
|
Display |
Type |
3×3.0-inch LED Digits |
Resolution |
0.1dB (<100dB), 1dB (>100dB) |
|
Alarm |
Threshold Adjustment |
50 ~ 130 dB (Customizable) |
Alarm Duration |
6s ~ 120s (Default 120s) |
|
Alarm Type |
Sound + Flashing Display + Data Lock |
|
Output Interface |
3.5mm Jack (6-12V External Horn) |
|
Power |
Supply |
DC 5V 1A (Micro USB) |
Auto Power-On |
Yes (After 2-min Power Cycle) |
|
Environmental |
Operating Temp |
0°C ~ 40°C |
Operating Humidity |
10% ~ 80% RH |
|
Storage Temp |
-10°C ~ 60°C |
|
Physical |
Dimensions |
210×130×28 mm |
Weight |
453g (Net) |
|
Installation |
Wall Hook + 1/4" Copper Nut (Tripod) |
|
Compliance |
Standard |
GB/T 3785-2010 |
Package |
Contents |
Meter ×1, USB Cable ×1, Manual ×1, Warranty Card ×1 |
🔥 6 Key Features
🎯 High Accuracy|±1.5dB Error|30-130dB Range with A-Weighting & FAST Response (GB/T 3785)!
⚠️ Smart Alarm|Custom Threshold (50-130dB)|Data Lock + 120s Sound/Light Alert!
🔧 Dual Installation|Wall Hook + 1/4" Tripod Port|Ready for Workshop/Home/Office!
🌡️ Rugged Design|-10°C~60°C Storage|0°C~40°C Operation|Dust/Corrosion Resistance!
📜 Certified Quality|Meets GB/T 3785-2010|Factory Pre-Calibrated for Plug & Measure!
⚡ Easy Operation|One-Button Control|3-inch LED Display|DC5V Micro USB Powered!
📍 Key Applications
🏭 Industry:Factory floors, machinery noise, compressor rooms
🏡 Civil:Residential areas, schools, hospital quiet zones
🛣️ Transport:Road construction, airport noise assessment
🔊 Equipment:HVAC units, generators, pump house monitoring
🏢 Commercial:Office meetings, conference rooms, library compliance













Product Description
🔊 Professional High-Precision
±1.5dB accuracy meets IEC651 TYPE2 & ANSI S1.4 standards! 31.5Hz~8.5kHz frequency response, 30~130dBA/dBC wide range.⚡️ Dual-Mode Flexibility
A/C Weighting (human ear/machinery) + FAST/SLOW response (125ms/1s)🌪️. Perfect for factories, traffic, home acoustics!📊 Multi-Channel Output
AC/DC analog outputs (10mV/dB) for analyzers📈; MAX hold, 5-digit LCD + analog bar display (0.1dB resolution).🛠️ Ready-to-Use Portability
Ultra-light (210g/8.7×2.6×1.3in), 🔋1x9V battery, includes wind ball & tripod mount for field use!✅ Pre-Calibrated & Durable
Factory-tuned with 94dB@1KHz calibration guide; 0~40℃ operating temp🌡️, 1-year calibration cycle.
Critical Product Specifications
Category |
Parameter |
Model |
882A |
Accuracy |
±1.5dB (ref. 94dB@1kHz) |
Measurement Range |
30–130 dB (A/C weighting) |
Frequency Response |
31.5 Hz–8.5 kHz |
Dynamic Range |
50 dB |
Weighting Networks |
A (Human Ear) & C (Machinery) |
Time Weighting |
FAST (125ms) / SLOW (1s) |
Display |
5-digit LCD (0.1dB res) + Analog Bar (1dB/segment) |
Overload Indicators |
"OVER"/"UNDER" |
Analog Outputs |
AC Output (mic-dependent) |
Microphone |
1/2" Condenser Mic |
Max Value Hold |
MAX Lock Function |
Power Supply |
1×9V Battery (included) |
Dimensions |
220×67×32 mm (8.7×2.6×1.3 in) |
Weight |
210g (0.46 lb) (with battery) |
Operating Temp |
0–40°C (10–80% RH) |
Calibration |
Factory-precalibrated |

