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OurLum.com

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Precise Cadence Sensor for Cyclists

~~$257.99~~ $206.99

19% off Free Shipping

#4001008082955-S314 and H303 Sensor

How It Fits

What Customers Are Saying

Small True to size Large

Measurements

Size	Waist	Hips	US/CAN
XS	24-25	35-36	0/1
S	26-27	37-38	3/5
M	28-29	39-40	7/9
L	30.5-32	41.5-43	11/13
XL	33.5	44.5	15
1X	37-38.5	47-48.5	14/16
2X	40-42	50-52	18/20
3X	44-46	54-56	22/24

Measurements are approximate. For the best fit, we recommend measuring yourself and comparing to our size chart.

Color S314 and H303 Sensor

This discount is based on purchasing the main product

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Shipping:

Free Local and International shipping. See details

Delivery:

Estimated between Aug 14, 2026 and Aug 16, 2026 Ships within 1 business day after payment clears. | SHOP Track Order | Ourlum Orders | Track Orders

Returns:

30 days returns. 100% Money back guaranteed no question ask. If the mistake is from Us. See details

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Precise Cadence Sensor for Cyclists

~~$257.99~~ $206.99

S314 and H303 Sensor

Precise Cadence Sensor for Cyclists

Product Overview

Magene S3 Plus Speed Cadence Sensor: a compact dual ANT+/BLE unit delivering speed and cadence data for Wahoo, Zwift, Garmin, and apps—no extra dongles.

Key Benefits

Single sensor, dual data streams
Universal ANT+/BLE pairing
Battery-orientation toggle to switch data
Lightweight ~9 g with geomagnetic sensing

Specifications

Smart Product for Better Living: Made from premium-quality materials for exceptional durability, reliable performance, and everyday convenience.
Support Level: Light
Adjustable Straps: Yes
Removable Cup Openings: Yes
Weight: about 9 g

Who It's For

Cyclists wanting precise, synced data with minimal clutter.

Frequently Asked Questions

Q: Why buy? A: Combines speed and cadence in one tiny sensor.
Q: Will it work with my devices? A: Yes—ANT+/BLE, Wahoo, Zwift, Garmin, apps, no adapters.
Q: How to switch modes? A: Re-seat battery orientation.
Q: Is it durable? A: Yes, operates -20°C to 50°C and CE certified.

Use Cases

Indoor trainer (Zwift) sessions
Outdoor rides with GPS devices

This product is part of OurLum's collection of practical products designed to make everyday life easier, more comfortable, and more enjoyable.

Precise Cadence Sensor for Cyclists

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At OurLum.com, we don’t just promise quality—we guarantee it. Every product is carefully selected and tested to meet real-life needs, and your satisfaction is 100% backed by our no-hassle return policy. If it doesn’t work for you, we’ll make it right—fast. Shop confidently knowing you're getting trusted products, secure checkout, and real support when you need it. Because at OurLum, your peace of mind comes first

We want you to love every purchase from OurLum.com. If you're not completely satisfied, you can return any item within30 daysof delivery—no questions asked. Items must be in their original condition and packaging. Simply contact our support team, and we’ll guide you through a quick, hassle-free return or exchange process. Your satisfaction is our priority.