# Heart rate sensor Magene H303 — wireless chest strap heart-rate monitor

**URL:** https://aio.lv/en/product--magene-h303--10973566
**Data updated:** 2026-03-20 09:47 (EET)
**Category:** Sports & Fitness Products
**Manufacturer:** Magene
**Manufacturer code:** H303
**EAN:** 6971606840946
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 20.65 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--magene-h303--10973566

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Magene H303 is a heart rate sensor designed as a wireless chest-strap monitor for tracking heart rate during workouts and everyday activities. It connects to compatible devices and apps to provide real-time pulse data for training, cardio monitoring, and fitness tracking. Practical for runners, cyclists, gym users and anyone needing accurate heart-rate measurements.

## Long description

Magene H303 — wireless chest strap heart-rate monitor designed to deliver continuous, accurate heart rate data during workouts and everyday activities. The H303 uses an ECG signal processing chip and a proprietary algorithm to extract heart rate directly from the ECG waveform, reducing interference from movement and sweat. Lightweight and ergonomically shaped, the unit includes an adjustable elastic chest strap, preinstalled CR2032 battery and supports simultaneous Bluetooth 4.2 and ANT+ connections for real-time data transfer to cycling computers, sports watches and mobile apps.
Advantages
The Magene H303 provides high-precision heart rate measurement with ±1 BPM accuracy across a 30–240 BPM range while remaining comfortable to wear thanks to a slim sensor (62.3 x 35.1 x 11.5 mm) and an adjustable strap. Dual-protocol connectivity (Bluetooth 4.2 and ANT+) allows it to pair with two devices at once, and the long-lasting CR2032 battery offers up to 1000 hours of operation. IP67 water resistance ensures reliable performance in wet conditions and during intense training sessions.
Suitable for
Runners tracking pace and training zones
Cyclists using bike computers or training apps
Gym users monitoring heart-rate zones during workouts
Fitness enthusiasts integrating data with apps like Zwift, Strava or Wahoo
Users needing a lightweight, durable chest-strap monitor for outdoor training
Key specifications
Dimensions: 62.3 x 35.1 x 11.5 mm (sensor)
Chest strap length: 64–86 cm (±2 cm), adjustable elastic strap
Weight: 16 g (sensor), 30±1 g (strap)
Connectivity: Bluetooth 4.2 and ANT+ (simultaneous pairing supported)
Heart rate measurement range: 30–240 BPM
Heart rate accuracy: ±1 BPM
Battery type and life: CR2032, up to 1000 hours
Ingress protection: IP67 (dust resistant, immersion up to 1 m for 30 min)
How to use
Attach the adjustable elastic strap around the chest so the sensor sits flat against the skin below the sternum. Turn on the receiving device or app, enable Bluetooth or ANT+ and pair with the Magene H303; the sensor can connect to two devices simultaneously. Ensure good skin contact and dampen the contact pads slightly if necessary to improve signal quality. After use, remove the strap, wipe the sensor dry and store in a cool, dry place. Replace the CR2032 battery when the paired device indicates low battery.
Usage recommendations
For best measurement stability, position the sensor centrally under the breastbone and adjust the strap for a snug but comfortable fit. Use the H303 with compatible apps or devices that display BPM and training zones. Rinse and air-dry the strap after heavy sweating and avoid exposing the sensor to strong chemicals or prolonged direct sunlight to preserve seals and electronics.

## FAQ

### How much does the Heart rate sensor Magene H303 cost, and is it available for purchase?

The price is 24.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 223 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Magene products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Magene service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10973566/61396218_large.webp