Real Instruments HT-90A Digital Sound Level Meter 30 dB to 130 dB Range, A-Weighting & C-Weighting, Fast/Slow Response Modes, LCD Display with Backlight, Data Hold Function, Auto Power Off for Industrial, Environmental & Construction Noise Monitoring

The HT-90A Sound Level Meter is a highly accurate and portable instrument designed for measuring sound levels in various environments, including industrial, environmental, construction, and occupational noise assessments. Equipped with a large LCD display, the meter provides clear, easy-to-read results for sound pressure levels in a wide range of frequencies. It features wide frequency range, fast/slow response time, and multiple measurement units, making it an ideal choice for noise monitoring and noise control applications. With additional features like data hold, auto power off, and high/low measuring ranges, the HT-90A offers reliability and versatility for professional use.

Key Features:

✔ Wide Measurement Range: Measures sound levels from 30 dB to 130 dB for various noise levels.
✔ Frequency Range: Measures sound frequencies within the range of 31.5 Hz to 8 kHz.
✔ Fast/Slow Response Time: Offers both fast and slow response modes for accurate real-time measurements or averaged readings.
✔ Multiple Measurement Units: Can measure in dB (decibels) with A-weighting and C-weighting for accurate representation of noise levels.
✔ Large LCD Display: Displays measurements clearly, ensuring easy reading of results.
✔ Data Hold Function: Allows users to freeze and hold the displayed reading for easy reference.
✔ Auto Power Off: The unit automatically turns off after a period of inactivity to conserve battery power.
✔ Portable & Lightweight Design: Convenient for fieldwork and long-term usage.
✔ Battery-Powered: Operates on 9V battery for extended usage.

Specifications:

🔹 Measurement Range:

• 30 dB to 130 dB
  🔹 Frequency Range:
• 31.5 Hz to 8 kHz
  🔹 Accuracy:
• ±1.5 dB (at 94 dB, 1 kHz)
  🔹 Weighting Networks:
• A-weighting
• C-weighting
  🔹 Response Time:
• Fast Response: Approx. 125 ms
• Slow Response: Approx. 1 sec
  🔹 Display Type: Large LCD screen with backlight
  🔹 Power Supply: 1 x 9V battery
  🔹 Auto Power Off: Yes, after approximately 10 minutes of inactivity
  🔹 Measurement Units: dB (decibels)
  🔹 Dimensions: Approx. 225 x 70 x 30 mm
  🔹 Weight: Approx. 250g (including battery)

Applications:

✅ Industrial Noise Monitoring: Ideal for assessing noise levels in factories, manufacturing plants, and workplaces.
✅ Environmental Noise Measurement: Used for noise pollution assessment in urban planning, construction, and environmental studies.
✅ Construction Sites: Helps in measuring sound levels on construction sites to ensure compliance with noise regulations.
✅ Occupational Health & Safety: Assists in evaluating workplace noise exposure to comply with safety regulations and protect workers' hearing.
✅ Transportation & Traffic Noise: Measures sound levels from traffic and transport systems in urban and rural areas.
✅ Home & Office Environments: Suitable for monitoring sound levels in offices and homes to assess acoustic comfort.

Advantages of the HT-90A Sound Level Meter:

✔ High Accuracy: Provides precise sound level measurements with ±1.5 dB accuracy.
✔ Versatile Use: Suitable for a wide range of noise measurement applications, from industrial to residential.
✔ Clear Display: Large, easy-to-read LCD with backlight ensures visibility in low-light conditions.
✔ Portable Design: Lightweight and compact for easy handling and transport.
✔ Battery Efficient: Auto power off feature helps save battery life when not in use.

The HT-90A Sound Level Meter is an essential tool for professionals in noise assessment, environmental monitoring, and occupational health and safety, offering reliable and accurate sound level measurements.