Barcus-Berry 4000PI Planar Wave Piano Sensor – 4000PI-U

Barcus-Berry 4000PI Planar Wave Piano Sensor – 4000PI-U

Marsoni

M251S

$199.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Barcus-Berry 4000PI Planar Wave Piano Sensor – 4000PI-UPlanar wave sensor for piano captures authentic tone with minimal noise. Barcus Berry's planar wave technology isolates true piano resonance while rejecting pedal and hammer noise, making this sensor perfect for concert grands and uprights alike. Piezo crystal planar wave sensor for grand and upright pianos Non responsive to unwanted pedal and hammer noise Sensitive to soundboard vibrations for true piano tone Easy installation with adhesive pads; no

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Looks like a silly little thing, I am not a coffee enthusiast. But it does exactly what it is supposed to do and with high quality. The device (a stretch to call it that) is made of sturdy materials including the needles. They give you two different thicknesses of needles, one for expressi (0.3) and one set for coffee grinds (0.4). Each comes wth some spares. The stand is well designed and keeps grinds from spreading all over. It is very elegant design. I use this with a dosing funnel on my portafilter. Not the cheapest one could buy but well worth the money.

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Reviewed in the United States on March 16, 2025

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Sunny

Los Angeles, US

★★★★★ 5

Well made, high quality product.

This product demonstrates excellent quality, featuring a robust construction and intuitive design for ease of use. It includes two distinct wire sizes and offers straightforward assembly. Its superior durability and strong magnetic properties ensure effortless reattachment to its stand.

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Reviewed in the United States on June 30, 2025

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Amazon Customer

West Palm Beach, US

★★★★★ 5

Perfect WDT tool

Best WDT I’ve found. Love that it includes 0.3mm needles (as I’ve found that 0.4mm needles push the grounds around too much), and the stand is very clever. It knocks off the residual grounds on the needles and is easy to use. As far as WDT tools go, I can’t imagine anything better.

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Reviewed in the United States on April 13, 2025

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MrEdmonds

Bozeman, US

★★★★★ 5

Amazing quality build

This WDT tool is solid and well-made. Definitely worth having!

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Reviewed in the United States on June 26, 2025

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Amazon Customer