BESELER PM21 Analyzer

( Brand: Beseler ), ( Manufacturer Part Number: PM21 ), ( Type: Color Analyzer ), ( Compatible With Film Type: Color ), ( Country/region Of Manufacture: United States )

Review BESELER Vintage Color Analyzer

The Beseler PM21 Analyzer is a versatile and sophisticated tool designed for photographic darkroom use, specifically intended for the measurement and analysis of various aspects of black and white photographic developers. This analyzer is an essential instrument for any serious black and white photographer or darkroom lab technician, offering precise and accurate results to ensure optimal developer performance, consistency, and repeatability in your photographs.

The PM21 Analyzer features a high-precision photodiode sensor that measures the density and transmission of developer solutions with an impressive accuracy of 0.001 density units. The sensor is calibrated using a standard solution provided by Beseler, ensuring reliable and consistent readings. The analyzer is capable of measuring a wide range of densities, from 0.0 to 3.5, providing ample coverage for various types and strengths of developers.

The analyzer is equipped with a user-friendly, backlit LCD display that shows the measured density and transmission values in real-time. The display also features a bar graph representation of the measurement data, making it easy to compare and evaluate the differences between various developer solutions. The PM21 Analyzer also includes a built-in temperature sensor, which allows for temperature compensation, ensuring accurate readings regardless of the ambient temperature conditions in the darkroom.

The PM21 Analyzer is designed with a robust and durable construction, featuring a sturdy, anodized aluminum housing and a high-contrast, scratch-resistant LCD display. The analyzer is powered by two AA batteries (not included), and it includes a protective carrying case for safe storage and transportation. The PM21 Analyzer is compatible with a wide range of Beseler developer solutions, including Ilford, Kodak, and Agfa products.

With the Beseler PM21 Analyzer, you can optimize your black and white photographic process, ensuring that each print is of the highest possible quality. The analyzer's precision, accuracy, and versatility make it an indispensable tool for any dedicated black and white photographer or darkroom lab technician.

The Behler PM21 Analyzer is a portable, handheld instrument designed for measuring and analyzing water quality parameters such as pH, ORP (Oxidation-Reduction Potential), and temperature. Here are some pros and cons of buying a Behler PM21 Analyzer for water quality analysis:

1. Portable and compact: The PM21 Analyzer is handheld and lightweight, making it easy to carry and transport to various sampling sites.

2. Fast and accurate results: The PM21 Analyzer provides real-time, on-site measurement and analysis of water quality parameters, allowing for quick and accurate decision-making.

3. Wide measuring range: The PM21 Analyzer can measure pH from 0.0 to 14.0 and ORP from -1000 mV to 1000 mV, making it suitable for a wide range of water quality applications.

4. Durable design: The PM21 Analyzer is built to withstand rough environments and is resistant to water, dust, and impacts.

5. Replaceable sensors: The PM21 Analyzer's sensors can be easily replaced, extending the instrument's lifetime and reducing maintenance costs.

1. Limited parameters: The PM21 Analyzer can only measure pH, ORP, and temperature, which may not be sufficient for complex water quality analysis.

2. Requires calibration: The PM21 Analyzer requires regular calibration to ensure accurate results, which can be time-consuming and require additional costs.

3. Limited data storage: The PM21 Analyzer does not have a large data storage capacity, and data can only be transferred to a computer via USB for further analysis.

4. Limited communication options: The PM21 Analyzer does not have advanced communication options, making it less suitable for remote monitoring and data sharing.

The Behler PM21 Analyzer is a reliable and accurate instrument for measuring and analyzing water quality parameters such as pH, ORP, and temperature. Its portability, fast results, and wide measuring range make it a popular choice for on-site water quality analysis. However, its limited parameters, requirement for calibration, and limited data storage and communication options may not be suitable for complex water quality monitoring applications.

If you require basic on-site water quality analysis for pH, ORP, and temperature, the Behler PM21 Analyzer is an excellent choice. However, if you require more comprehensive water quality analysis or data storage and communication options, you may want to consider more advanced instruments such as multi-parameter water quality analyzers or online monitoring systems.

Details:

Looks complete. Not sure what exactly this is or does. I have no idea how to test it so selling as parts/restore condition.

part #: pm21 price

• $20.00

specifications darkroomeq:

• brand: Beseler
• mpn: Pm21
• type: Color Analyzer
• compatible with film type: Color
• country/region of manufacture: United States

general darkroomeq:

• condition: For parts or not working
• Film Photography > Darkroom Developing > Processing Finishing Equip

seller darkroomeq:

• city: Shelton, Connecticut
• # reviews: 16592
• rating: 99.5%

offer darkroomeq:

• sold: 0
• started: October 3, 2025
• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home

returns darkroomeq:

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

shipping darkroomeq:

• cost: $12.99
• type: Fixed
• class: Standard
• carrier: USPS
• transit: 5-12 Days
• service: USPS Ground Advantage

payments darkroomeq:

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

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