Keyence FU-21

Reflective Fiber Unit. . Series: Fiber Unit. Series code: FU series

MPN: FU-21
Category: Fiber Unit

Price and lead time confirmed within 1 business day

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1We check stock, condition and lead time
2You get a written quote by email
3Approve it and we ship — in-stock parts within 1 business day

12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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What is the Keyence FU-21?

Reflective Fiber Unit. FU-21. Series: Fiber Unit. Series code: FU series

Specifications

Model Name	Reflective Fiber Unit
Model Code	FU-21
Series Title	Fiber Unit
Series Code	FU series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_SR_fu&dlModelId=PM_00921&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
Model	FU-21
Detecting method	Diffuse Reflective
Size	M3
Detection arrangement	Coaxial
Fibre unit length	50 cm19.685" cannot be cut
Shape	Straight
Minimum bend radius	R25 mm0.984"
Detection distance	7 mm0.276"*1
Environmental resistance	-40 to +70 °C -40 to 158 °F
Weight	Approx. 4 g

FU-21: frequently asked questions

When can FU-21 be shipped?

FU-21 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up FU-21 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for FU-21 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for FU-21, subject to availability and destination.