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    A CATEYE OHR-31 Optical Heart Rate Sensor wearable in a black rectangular design with a perforated adjustable strap is shown against a plain white background.
    A black CATEYE OHR-31 Optical Heart Rate Sensor wrist-worn device is shown from the back on a plain white background, featuring certification symbols, a central port, and a model label.
    The CATEYE OHR-31 Optical Heart Rate Sensor, a black wristwatch-style fitness tracker with a square sensor, round charging dock, and USB cable, is displayed on a white background.
    The CATEYE OHR-31 Optical Heart Rate Sensor, featuring a wristwatch-style design and USB charging cable with a round base and standard connector, is shown on a plain white background.
    A black CATEYE OHR-31 Optical Heart Rate Sensor with a square shape and rounded edges, attached to a USB cable, featuring dual-band Bluetooth, is placed on a plain light grey background.
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    • OHR-31 Optical Heart Rate Sensor

    OHR-31 Optical Heart Rate Sensor

    CATEYE America
    Sale price$54.95Regular price $74.95
    2 reviews
    CATEYE America

    Introducing the OHR-31 Optical Heart Rate Sensor, the perfect balance of performance and convenience. This compact wrist watch style device offers dual-band Bluetooth 5.0/ANT+ capability for easy connection to cycling computers and smartphone apps, plus USB rechargeable battery with up to 24-hour run-time. IPX7 rated to withstand the elements, the OHR-31 also features an LED low battery indicator and auto shutdown mode for maximized battery life. Multiple armband sizes included. Enjoy effortless tracking of your heart rate without the bulk of a chest strap.

    SKU: 1604540

    In stock, ready to ship
     
     
    This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
    FEATURES

    Compact wrist watch style Optical LED based heart rate sensor
    Dual band Bluetooth 50 / ANT+ seamlessly connects to cycling computers and smartphone apps, including CatEye Cycling
    USB rechargeable with up to 24 hours of run-time
    IPX7 rated to withstand the elements
    LED low battery indicator and auto shutdown mode maximizes the battery life between charges
    Includes multiple armband size options to ensure proper fit

    FUNCTIONS

    Heart rate

    TECH SPECS

    Transmission: Bluetooth 5.0 / ANT+
    Sensor: Optical LED
    Heart rate range: 40-220 bpm (±5 bpm)
    Dimensions: 1-49/64" x 1-19/64" x 15/32" (45 × 33 × 12mm)
    Weight: 0.39 oz (11 g) (Excluding the arm band)

    WHAT'S INCLUDED
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    A CATEYE OHR-31 Optical Heart Rate Sensor wearable in a black rectangular design with a perforated adjustable strap is shown against a plain white background.

    OHR-31 Optical Heart Rate Sensor

    Sale price$54.95Regular price $74.95
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    Customer Reviews

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    R
    Randall Washington
    Excellent!

    Great product! I like the optical technology and arm location. I prefer it over an "electrical" sensor and chest strap. Paired easily with ZWIFT, my Merach rower and the Cateye app. Recommend!

    R
    Reginald Gaylord

    I recently installed the Cateye Air GPS and Heart Rate sensor. The good: easy installation, trouble-free setup, really like the lack of sensors on the bike. The HRS seems accurate and smooth. The only area for improvement would be a "scan" function that rotates through the different measurement parameter.

    Bottom line - I'd buy this unit again.

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