In this post, I’ll show you exactly how to install a digital row counter on your circular knitting machine, why it’s a game-changer for both circular and panel knitting, and how to choose the right one for your setup.
Counting rows by hand on a circular knitting machine like the Sentro can feel like playing yarn roulette. That’s where a digital row counter comes to the rescue!
Ready to make your machine smarter? Let’s dive in!
Table of Contents
What is a Digital Row Counter (And Why Do You Need One)?
A digital row counter is a small electronic device that counts every rotation of your Sentro’s handle. It’s especially useful for:
- Panel knitting where the built-in counter doesn’t work
- Projects that require precise shaping
- Preventing mistakes when you’re multitasking (Netflix + knitting, anyone?)
Tools and Materials You’ll Need to install a digital row counter on your circular knitting machine
Before installing, gather these items:
- Your Sentro 48, 40 or 22 needle knitting machine (it will work on any machine)
- A compatible digital row counter (magnetic sensor-based works best)
- Mounting materials (double-sided tape, velcro with tape, or small screws)
- A magnet (I bought a 1.5 mm thick one)
- Philips screw driver to wire if needed
How to Install a Digital Row Counter on a Sentro
Step 1: Choose the Right Spot
The goal is to track one complete rotation of the handle. On the Sentro, this happens when a certain gear or piece of the circular plate passes by. Position your sensor near a spot with moving parts that repeat once per row.
Fab tip: Place it near the needle 1 on the nuck that’s in between both needles, or a needle that you always use for your projects that are panel made.
Step 2: Wire the Reader if needed
Some digital row counters require wiring the sensor (or reader) to the display unit. If yours does, follow the product instructions, typically it’s just a simple two-wire setup. Make sure the connection is firm so your counter stays accurate while you knit.
Step 3: Mount the Sensor
Magnetic counters require a small magnet attached to a moving part. The sensor will count every time the magnet passes by.
Use adhesive Velcro for the placement of the reader and double-sided tape for the magnet. I don’t like using glue because you need to open the machine to clean it, and the magnet would be in the way.
Step 4: Test the Setup
Turn the crank slowly. Watch the counter as it detects each round.
If it increments every time you complete a row, you’re good to go!
If the counter skips or counts more than once per row, try repositioning the sensor. Keep in mind—the smaller your magnet is, the closer the reader needs to be for accurate detection.
You want clean, reliable detection. Make sure nothing is blocking the sensor and the trigger (magnet or object) passes the same way every time.
Step 5: Use It While Knitting
Turn on the counter at the start of your project. Now every time you complete a round or row, it’ll record the count for you—no mental math required.
Bonus: If you pause your project, you’ll always know exactly where you left off.
Frequently Asked Questions (FAQs) about how to install a digital row counter on your circular knitting machine
Can I use this for both circular and panel knitting?
Yes! In fact, panel knitting is where this shines—the built-in counter on most Sentros stops working in panel mode, but your digital counter won’t!
Do I need technical skills to install it?
Nope. If you can thread the Sentro, you can install this. It just takes a little patience and testing.
Which digital row counter should I buy?
Look for counters that are:
- Compact (so they fit without blocking the handle)
- Battery-powered or USB rechargeable
- Designed for knitting or rotary motion detection
There are lots of options on Amazon and AliExpress under $15, here are my favorite with good reviews!
Will this damage my machine?
Not at all—if you use non-permanent adhesives or light mounting options, the installation is completely reversible.
Can I reset the counter between projects?
Yes! Most counters have a reset button or auto-reset after shutdown. Super convenient for tracking multiple pieces.
Conclusion & Final Thoughts
If you’re tired of counting rows manually—or your built-in counter ghosts you during panel knitting—a digital row counter is a total game-changer.
You don’t need to be tech-savvy to set one up, and the benefits? Huge. From cleaner projects to faster knitting, this tiny upgrade makes a big difference in your crafting flow.
Try it out and let your Sentro do the counting while you focus on the fun part—creating something beautiful.
Watch the Video for the digital counter placement:
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Hi! I’m Fabiana, a crochet and knitwear designer with a passion for creating beautiful, functional pieces. I love experimenting with textures, colors, and patterns to craft everything from cozy sweaters to crochet swimsuit. On my YouTube channel, I share tutorials, tips, and behind-the-scenes looks at my design process. Crochet and knitting are more than hobbies—they’re my way of life.
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Happy knitting!
