How to Choose a Chart Recorder for Data Acquisition: 4 Options from $45 to $450

Shopping for a data acquisition recorder means weighing how much you can spend against how much testing and setup you are willing to handle. The four chart recorders here show that condition matters as much as price: one is sold for parts, another is working, and the others are used or untested. Before you pick one, decide whether you are buying a working lab tool or a repair project.

Quick take

If you need a working recorder, the Pharmacia 19-8003-01 is the most straightforward pick. If you want the lowest listed price, the Kipp & Zonen BD 41 is the entry point. The Omega RD71 is a parts-or-repair unit, and the Barnstead/Thermolyne Linear LR93125 is a used 1200 Series unit at the top of the range.

Listed price comparison

The listed prices run from $45.00 to $450.00, a spread of $405. That wide range makes you decide what you are paying for: a possible project, a working lab tool, or a used unit with cosmetic wear.

Decision matrix

Product notes

#### Omega RD71 Engineering Chart Recorder

Listed at USD 347.23, the Omega RD71 is sold as a chart recorder for parts or repair. It powers on and the motor spins when the switch is actuated, but the unit has loose debris inside and has not been fully tested. It is also sold without a power cord, so you would need to supply one if you attempt to run it. This is a donor unit for someone who is comfortable with troubleshooting and cleaning, not a plug-and-play instrument. If you need a recorder for immediate use, the Pharmacia at a lower price is the better path.

#### Kipp & Zonen BD 41 Chart Recorder

At USD 45.00, the Kipp & Zonen BD 41 is the lowest-priced chart recorder in this comparison. The listing notes that it turns on and that button presses cause movement, but it is described as untested. No power cord is included, and multiple quantities are available, so the markings may differ from unit to unit. This is a low-cost starting point if you are ready to verify operation yourself before relying on it. The main limitation is that you are taking on the test process, not buying a confirmed working recorder.

#### Pharmacia 19-8003-01 Laboratory Strip Chart Recorder

Priced at USD 260.00, the Pharmacia 19-8003-01 is described as a working laboratory strip chart recorder for 115V use. It includes an attached power cord and installed chart paper, and it is positioned for applications like chromatography and electrophoresis. This is the only unit in the group explicitly described as working, which makes it the strongest choice for someone who needs a recorder ready to go. The note that only the items shown are included means you may need to add supplies after the installed paper is used.

#### Barnstead/Thermolyne Linear LR93125 1200 Series Chart Recorder

At USD 450.00, the Barnstead/Thermolyne Linear LR93125 is the most expensive option here. It is a used chart recorder in the 1200 Series, and the condition notes point to visible scratches and scuffs while describing the overall condition as good. It comes as pictured, with the price reflecting the specific model and used state. If you are specifically looking for a Barnstead/Thermolyne Linear series recorder and can accept cosmetic wear, this is the unit that matches that need. There is no stated functional test, so treat it as a used instrument you will need to evaluate.

Final recommendation by use case

• For a working data acquisition recorder: Pharmacia 19-8003-01
• For a low-cost starting point: Kipp & Zonen BD 41
• For a repair/donor unit: Omega RD71 Engineering Chart Recorder
• For a specific used Linear-series unit: Barnstead/Thermolyne Linear LR93125