Valley Electronics - Home of Daysy

A reliable partner for health-conscious women

Valley Electronics AG, based in Zurich, Switzerland, is an international research-based medical technology company with a long track record of developing and distributing fertility trackers. Thanks to this accumulated knowledge, Valley Electronics has been able to manufacture and bring to market reliable, precise, and user-friendly technology for natural fertility awareness.

Located in Switzerland, Germany, and the USA, Valley Electronics, together with its affiliated companies, is active in more than 40 countries.

With its products Daysy, Lady-Comp and Pearly, the company offers the highest possible reliability, well-engineered technology, and a wealth of experience. More than 50 employees are the creative heart of the company, working continuously to further improve the products and providing exceptionally personalized customer service.

As a family-owned company, Valley Electronics stands for values of transparency, compassion, openness, equal opportunities, family-friendliness, and sustainability. Valley Electronics’ company culture is based on respect, openness, and personal development.

Valley Electronics is run by Natalie Rechberg-Egly, the daughter of Dr. Hubertus Rechberg, who founded Valley Electronics GmbH more than 35 years ago. Together with her husband Collin Egly, Rechberg-Egly is responsible for the entire product range of Valley Electronics and is constantly seeking to make improvements, e.g. by integrating new technologies and applications.

All Valley Electronics products are manufactured in Germany.

Our vision

More knowledge. More choice. More freedom. That’s our vision. You’re in control. Daysy is the tool. Data to help you make some of the most powerful decisions of your life. 

Our mission

Our mission is to provide women with the knowledge and tools they need to make informed and powerful choices about their menstrual cycle, their fertility, and their body. Your body. Your cycle. Your choice.

Track your cycle and be in charge. 

We support women who want to be in control of their own body - for natural family planning but also for a deeper knowledge about oneself in harmony with the female nature. We provide intelligent technology for fertility tracking that is both effective and empowering. We provide smart and easy-to-use technology both standalone and smartphone compatible devices - in the field of fertility awareness and body literacy.

Daysy 2.0 - Your personal fertility tracker
299.00 £

incl. VAT and Shipping - Product available - Delivery time: 2-3 days*

Daysy is an intelligent fertility tracker that lets you get to know your very own menstrual cycle.

Pioneering in the field of computer-assisted cycle tracking

Valley Electronics GmbH was founded in 1986 by Dr. Hubertus Rechberg.

With a team of gynecologists, software specialists, electrical engineers, and designers, Valley Electronics created the Baby-Comp in 1986 – the first mini-computer in the world that was able to analyze the female menstrual cycle.

Six years later, the Lady-Comp, an updated version of the Baby-Comp, was market-ready; a considerably smaller version of the previous cycle tracker, Pearly, followed in 2004. Daysy and the DaysyDay App were launched in 2014, enabling users to connect Daysy to a mobile device for the first time.

Valley Electronics has been developing and distributing fertility trackers for more than 35 years.

Products at the highest level

Valley Electronics AG is certified according to EN ISO 13485, meaning that quality management is oriented toward the newest standards for medical products. All processes at Valley Electronics AG are subject to regular checks, both internal and external. Valley Electronics AG products are developed based on scientific evidence; the reliability of the company’s fertility trackers has been proven in several studies.

Even after they reach the market, Valley Electronics AG products are continuously reviewed and improved with the help of customer feedback. Innovation and improvements never stop.

Our key messages …

... Daysy stands for natural menstrual cycle tracking and fertility awareness.

… Daysy is a reliable method to naturally monitor the female cycle and determine one’s individual fertility. With this acquired knowledge, a pregnancy can be specifically planned.

… Daysy is a natural and precise method for all women (from age 18) who want a health-conscious lifestyle in natural harmony with her body.

… As a reliable Lifestyle-Fertility-Tracker, Daysy calculates the fertile and infertile phase of the menstrual cycle based on a reliable, precise and very sensitive computer-assisted basal temperature monitoring.

… With Daysy, women learn more about their bodies and always know the current state of their menstrual cycle and their fertility. 

… Daysy is a method to raise fertility awareness (FABM) which helps determine the fertile and infertile phase of a woman’s cycle.

… Daysy represents a natural lifestyle, has captured the zeitgeist and suits the needs of health-conscious women who know their cycle.

Daysy 2.0 - Your personal fertility tracker
299.00 £

incl. VAT and Shipping - Product available - Delivery time: 2-3 days*

Daysy is an intelligent fertility tracker that lets you get to know your very own menstrual cycle.

Daysy is reliable and precise due to technology and experience and is trusted by its users

… Daysy offers the highest quality, accuracy and reliability for menstrual cycle monitoring with its intelligent algorithm based on scientific knowledge, many years of experience and sophisticated technology,

… More than 500,000 users are highly satisfied with the experience of the Valley Electronics products and would recommend to their friends.

… Daysy was developed as a medical device, is registered accordingly and is monitored by a certified quality management system continuously.

Daysy is reliable and user-friendly

… Users appreciate the user-friendliness of Daysy.

… The temperature measurement as well as the data entry is simple and neither time-consuming nor complicated.

… Application errors are minimized thanks to the automation of data collection, measurement and calculation. Hormonal irregularities are taken into account as Daysy operates with quantitative data and statistical models.

Daysy is more than an app

… Daysy was developed as a medical device, is registered accordingly and is continuously monitored by a certified quality management system.

… Daysy distinguishes itself from the numerous other fertility-tracking-apps and ovulation tests by using an intelligent and high-quality combination of hardware and software. (The Fertility Tracker Method

… Daysy is compatible with the "DaysyDay" app and creates new digital opportunities to increase the knowledge of the own cycle and body and to share it with the partner or doctors.

… Daysy is not just a fad or a temporary trend, but rather the only scientifically approved fertility-tracker with more than 30 years of research and the personal experience of more than 500,000 users.

… In addition to its products, Valley Electronics stands for a comprehensive customer system with extensive customer service.

Valley Electronics: a reliable partner for health-conscious women

… As a “first mover”, Valley Electronics has been committed to developing fertility computers for more than 30 years. Due to this longterm experience, Valley Electronics has become an established, trustworthy and international expert in the field.

… Valley Electronics' vision is to provide a natural and reliable fertility awareness-based method that enables women to easily and specifically plan a pregnancy. This is and always has been Valley Electronics' core philosophy.

… Company founder Dr. Hubertus Rechberg developed the Lady-Comp (the first product of the parent company Valley Electronics) in 1986 for his wife. Since then, the company has continuously worked on making the fertility computer even more precise and user-friendly.

… 2014 Daysy was introduced to the market as a medical device by Rechberg’s daughter, Natalie Rechberg-Egly. With her husband Collin Egly, she has taken over both product lines and is constantly improving them, i.e. by developing the DaysyDay app.

… On the market of Lifestyle-Fertility-Trackers, Valley Electronics offers the highest reliability, the most sophisticated technology and the longest experience. Valley Electronics offers an extensive customer service with its product.

… The family company represents transparency, customer proximity, open mindedness, female- and family-friendliness and sustainability.

… Valley Electronics is proud of their employee satisfaction.

… Valley Electronics' headquarters are in Zurich, Switzerland.

Daysy 2.0 - Your personal fertility tracker
299.00 £

incl. VAT and Shipping - Product available - Delivery time: 2-3 days*

Daysy is an intelligent fertility tracker that lets you get to know your very own menstrual cycle.