Description
Product Overview
The DANOPLUS Decibel Meter (model DP‑441) is a compact, handheld sound level instrument designed for professional noise monitoring. Measuring from 30 dB to 130 dB with ±1.5 dB accuracy, it features A, B and C frequency weighting and selectable FAST/SLOW response. A 1.5 hour USB‑C charge powers a 1000 mAh battery, delivering up to 10 hours of continuous use. The device records up to 43,000 data points, displays real‑time charts on a colored LCD, and exports to PC via USB for Excel analysis. Dimensions are 5.98 × 2.55 × 1.06 inches, weighing 5.76 oz, making it easy to carry on site.
Usage
Designed for industrial, construction, and office environments, this meter helps safety managers verify compliance with OSHA noise limits, engineers assess acoustic performance, and educators demonstrate sound principles in labs. Its three‑color LED alarm (green, yellow, red) instantly warns of low, medium, or high noise levels, allowing quick corrective action. 
Why Choose Us
DANOPLUS combines rugged engineering with user‑friendly software. The data logger eliminates the need for separate recorders, while the USB interface ensures seamless integration with Windows 7/10/11. Each unit undergoes strict quality control, guaranteeing reliable performance in demanding settings. The inclusion of A/C weighting and voltage output expands compatibility with existing monitoring systems, offering a versatile solution that outperforms generic handheld meters.
Key Features
- High‑accuracy 30‑130 dB range with ±1.5 dB tolerance
- Three‑color LED alarm for instant noise level alerts
- Built‑in logger stores up to 43,000 readings; export to Excel via USB
- Switchable A, B, C frequency weighting and FAST/SLOW response
- USB‑C fast charging, 1000 mAh battery, and Windows PC compatibility
FAQ
What is the battery life on a full charge?
The 1000 mAh battery provides approximately 10 hours of continuous operation, sufficient for a full workday of monitoring.
Can the meter be used for outdoor measurements?
Yes, the device is built to withstand typical field conditions, but it is not water‑proof; avoid direct exposure to rain.
How does the data export work?
Connect the meter to a Windows PC via the supplied USB‑C cable, launch the DANOPLUS software, and export logged data as an Excel (.xlsx) file for analysis.
Is calibration required?
For optimal accuracy, calibrate the meter annually using a certified sound level calibrator that matches the 94 dB reference.
What does the voltage output mode provide?
When set to voltage output, the meter converts the measured dB value to a proportional analog voltage, allowing integration with external data acquisition systems.
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