BRISTOL INSTRUMENTS INC 428A Precision Wavelength Meter 801234487007

( Brand: Bristol Instruments Inc ), ( Manufacturer Part Number: 428A ), ( Type: Wavelength Meter ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( UPC: 801234487007 )

Review BRISTOL INSTRUMENTS INC Precision Multi wavelength Meter Best Offer

The **Bristol 801234487007 428A Precision Multi-Wavelength Meter** is a high-performance, versatile optical measurement instrument designed for professionals who demand accuracy, reliability, and flexibility in their work. Engineered with cutting-edge technology, this advanced meter excels in applications ranging from precision manufacturing and quality control to scientific research and industrial process monitoring. Its robust construction and intuitive interface make it an indispensable tool for technicians, engineers, and researchers who require precise measurements of light intensity across multiple wavelengths. The 428A model features a wide spectral range, allowing it to analyze light sources from ultraviolet (UV) to near-infrared (NIR) regions, ensuring compatibility with a broad spectrum of applications, including LED characterization, laser diagnostics, and photometric evaluations. With its high-resolution sensor array and fast response time, this meter delivers real-time data with exceptional accuracy, minimizing measurement errors and enhancing productivity. The device s compact yet durable design ensures portability without compromising performance, making it ideal for both laboratory and field use. Whether calibrating optical systems, verifying light-emitting diode (LED) performance, or conducting spectral analysis, the 428A provides the precision and consistency required to meet stringent industry standards. Its user-friendly software integration further simplifies data acquisition, analysis, and reporting, allowing operators to focus on their tasks with confidence. Built to withstand demanding environments, this meter is a testament to Bristol s commitment to innovation and engineering excellence, offering a seamless blend of precision, durability, and ease of use for professionals who rely on accurate optical measurements.

The **Bristol 801234487007 428A Precision Multi-Wavelength Meter** is a handheld device designed for measuring light intensity across multiple wavelengths, primarily used in horticulture, plant growth research, and LED lighting applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Multi-Wavelength Measurement**

The device measures light across multiple wavelengths (e.g., PAR, PPFD, and specific bands like red, blue, green, etc.), which is essential for assessing the spectral output of grow lights. This allows users to optimize lighting for different plant species or growth stages.

2. **High Precision and Accuracy**

It is designed for precision, providing reliable readings that are critical in scientific and commercial horticulture applications. The 428A model is known for its low measurement error, which is important for consistent results.

3. **Portable and Handheld Design**

The compact and handheld nature of the meter makes it easy to use in various environments, including greenhouses, grow rooms, or outdoor settings. This portability is ideal for fieldwork or on-the-go monitoring.

4. **Compatibility with Grow Lights**

It is specifically designed for LED grow lights, allowing users to evaluate the performance of different light spectra. This is particularly useful for growers who want to fine-tune their lighting setups for maximum yield and plant health.

5. **User-Friendly Interface**

The device likely features a clear display and intuitive controls, making it accessible for both professionals and hobbyists. Some models include data logging or connectivity options for further analysis.

6. **Durability**

Bristol instruments are generally built to withstand harsh conditions, which is beneficial for long-term use in demanding environments like commercial grow operations.

7. **Support for Research and Optimization**

For researchers or growers experimenting with different light spectra, this meter provides valuable data to adjust lighting parameters for better plant responses, such as increased photosynthesis or flowering.

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### **Cons**

1. **Cost**

The device is likely more expensive than basic light meters or PAR meters, which may be a barrier for small-scale growers or hobbyists on a tight budget. The price point may not justify the investment for casual users.

2. **Limited to Specific Applications**

While versatile for horticulture, it may not be useful for other light measurement applications (e.g., general lighting, automotive, or industrial settings). Users outside of plant growth may find it overly specialized.

3. **Learning Curve**

Understanding how to interpret multi-wavelength data requires some familiarity with plant physiology and lighting science. Beginners may need time to adjust to the readings and their implications.

4. **Battery Dependency**

As a handheld device, it relies on batteries, which may need frequent replacement or recharging, especially during extended use. This could disrupt workflow if not managed properly.

5. **Potential Calibration Needs**

Over time, sensors may require calibration to maintain accuracy. This adds maintenance overhead, particularly in professional settings where precision is critical.

6. **Limited Connectivity Options**

Depending on the model, connectivity features (e.g., Bluetooth, USB) may be limited or require additional accessories. This could restrict data transfer or integration with other systems.

7. **Market Availability and Support**

Bristol instruments may not be as widely available as more mainstream brands, potentially leading to longer wait times for repairs or replacements. Customer support may also be less accessible compared to larger manufacturers.

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### **Conclusion**

The **Bristol 801234487007 428A Precision Multi-Wavelength Meter** is a powerful tool for professionals and serious hobbyists involved in horticulture, plant growth research, or LED lighting optimization. Its ability to measure multiple wavelengths with high precision makes it invaluable for tailoring light spectra to specific plant needs. However, the higher cost, specialized use case, and potential maintenance requirements may not make it suitable for everyone.

For users who prioritize accuracy, spectral analysis, and long-term investment in their grow operations, this meter is a strong choice. Conversely, those on a budget or with simpler lighting needs may find more affordable alternatives sufficient.

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### **Recommendation**

- You are a professional grower, researcher, or commercial operator working with LED grow lights.

- You need precise, multi-wavelength data to optimize plant growth and lighting setups.

- You are willing to invest in a durable, high-quality tool that will provide long-term value.

- You are a hobbyist or small-scale grower with a limited budget.

- You only need basic PAR or PPFD measurements and do not require spectral analysis.

- You prefer a more widely available or cheaper option with similar functionality (e.g., other brands like Apogee, Spectrum Technologies, or budget-friendly meters).

Ultimately, the Bristol meter is a premium choice for those who demand precision and flexibility in their lighting measurements. For others, evaluating the cost-benefit ratio against their specific needs is essential.

Details:

The rack ears show some mounting marks. This wave length meter provides precise measurement, with a digital display and multiple input/output options, essential for optical research telecommunications. Model Number/MPN: 428A. The front panel is clean, and the digital display clear functional, showing configuration options measurement values.

As shown in the images, part of fuse housing is damaged as well.

specifications tesmetequ:

• brand: Bristol Instruments Inc
• mpn: 428a
• type: Wavelength Meter
• unit type: Unit
• country of origin: United States
• upc: 801234487007

shipping tesmetequ:

• service: FedEx Ground / FedEx Home Delivery, UPS Ground, UPS Next Day Air
• cost: $0.00
• class: Standard, One-day
• type: Fixed
• carrier: FedEx, UPS
• transit: 4-7 Days

seller tesmetequ:

• city: Fairfield, California
• # reviews: 2805
• rating: 100.0%

payments tesmetequ:

• wallet: Apple-pay
• credit card: Diners-club
• other

returns tesmetequ:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

offer tesmetequ:

• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• best offers: True
• started: June 5, 2026

general tesmetequ:

• condition: Used
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