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.

OHR-31 Optical Heart Rate Sensor

CATEYE America
$54.95
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
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

Pairs well with