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Heart Rate Sensors - Keep your finger on the pulse!

Heart Rate Sensors - Keep Your Finger On The Pulse BH1790GLC


Printable Press Release


BH1790GLC Heart Rate Sensor Datasheet


MORE About the BH1790GLC Heart Rate Sensor 

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Willow Technologies Ltd. unveil the new Heart Rate Optical Sensor from Rohm - the BH1790GLC. Utilising a specialised optical filter enables high accuracy detection, extending battery life while reducing the effects of IR rays ten fold versus conventional products. Making it possible to achieve high quality pulse signals even in environments with strong IR presence, such as the outdoors or under intense movement.

Bhupinder Randhawa, Senior Sales Engineer at Willow commented, Rohms optimisation of this device reduces the power consumption by an enormous 74%, making the battery for the wearable device much longer lasting.

The Heart Rate Optical Sensor is just 2.8 x 2.8 x 0.9mm and capable of detecting high quality pulse signals, using low VF, low brightness LED elements. This eliminates the requirement for DC/DC circuits for LED power supply, which are conventionally necessary. The result of which is a 30% smaller mounting area, lightening the development load.

By leveraging proprietary analogue circuit technology and their optical sensor expertise, Rohm has improved the sensors sensitivity, which allows pulse wave detection with very high accuracy, even with low LED brightness. The data from the new BH1790GLC can be collected and the sensor information processed using an optical heart rate monitor expansion board that Willow can also highly recommend Concluded Randhawa.


Willow Technologies Limited, founded in 1989, provides solutions to customers by designing, manufacturing and supplying components and systems to the electrical and electronic marketplace across the globe. Specialists in switching, sensing, resistive and hermetic seal solutions, the company has a wide portfolio of technologies and over 100 years of application experience. With an in-house engineering capability and a production facility for rapid prototyping of custom parts, the company is well equipped to develop products matching customer specific application requirements. Willow is ISO9001: 2008 Registered.

For further information please contact:

Bhupinder Randhawa, This e-mail address is being protected from spambots. You need JavaScript enabled to view it , +44 (0) 1342 717102.

Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, UK

Tel: +44 (0) 1342 717102, Fax: +44 (0) 1342 717014, Email:

CORPORATE: Solid State Group

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