Labs & TestbedsBio & Chemical Lab

SunSitive offers sunbathers an early warning system against potentially dangerous UVA and UVB rays. Using photonic-sensor technology, the device tells the user when the suntan lotion they have applied has ceased to provide adequate protection.

SunSitive is extremely simple to operate. When applying suntan lotion, a layer is applied to one of the sensor’s two ‘eyes’. One eye measures direct sun exposure while the other measures the amount of sunlight the skin is receiving under the suntan lotion. The more time spent in the sun, the more segments on the sensor’s display light up. When these are all lit, an alarm sounds, telling the user that he or she should now apply more lotion or move out of direct sunlight.

SunSitive was developed using a concept as its basis rather than existing technology. Unlike other units, it measures both UVB and UVA sunlight. This is a major benefit as UVA is more dangerous and can lead to skin cancer.

Everyone enjoys relaxing in the sunshine. The health benefits for both body and soul drives millions of us to seek out the sun every year. Unfortunately, there is a downside to this increasing desire to be tanned. Research has shown that too much UV radiation may cause dangerous illnesses of which the most serious are cancerous tumors known as malignant melanoma. Furthermore, repeated sunburn at a young age is considered especially dangerous.

So what is the answer to this potentially fatal problem? It has been shown that good sunbathing habits and control of radiation are extremely helpful. With this in mind, we initiated research into a groundbreaking product designed to address this problem – SunSitive.

Overly long exposure to intense sunshine causes UV-burning. Light-skinned people are especially at risk due to naturally low skin protection. Even when protective lotion is applied, it might be done so too sparingly or become less effective due to bathing or simply sweating in the heat. Moreover, most lotions undergo an ageing process in which protection reduces as time passes. SunSitive provides control over exposure with or without protective lotion.

Easy operation

SunSitive is designed to be totally uncomplicated and easy to use by both children and adults. It was our intention from the outset to ensure that SunSitive was as easy to use as it is practical and beneficial. With this in mind, we created the following easy operational steps.

  • Push the reset button until you hear a signal.
  • Apply the protective lotion both on your body and on one of SunSitive’s ‘eyes’.

Position it where it suits you best

Read off the values shown. No calculation, no checking of watches and no worrying if your lotion is providing adequate protection - SunSitive puts you in control while assuming the responsibility, taking the risk out of being in the sun.

Put your health first

Everyone is entitled to enjoy the health benefits of the sun. However, our desire for an active, outdoor lifestyle places us at odds with the dangers presented by a steadily deteriorating natural environment and increasing exposure to UV radiation. Let SunSitive evaluate these risks and keep you safe in the sun.

Unique function

SunSitive is a high-tech example of an extremely useful consumer product born through advanced industrial research. This approach often gives rise to the development of a specific function related to particular requirements. SunSitive is the only commercially available device that provides information on the actual amount of radiation to which the user is being exposed.


Sun dosimeter
This was SunSitive’s original intended application and the reason the product was initially developed. Sun dosimeters register how much UV radiation sunbathers are being exposed to and warn them when the dose is about to exceed the daily maximum recommended limit. As well as providing this, SunSitive also evaluates the quality of the sun lotion being used.

Solarium control unit
An obvious application of SunSitive is as a meter and control unit for solariums. Instead of relying on a timer to control the solarium, the user can control tanning by knowing the UV dose he/she is actually being exposed to during sunning. This also means that tanning can take place in a more controlled and individually adjusted way. In this way, a person with a sensitive complexion tans for a safe period determined by the control unit. Also, tanning is controlled in function of the quality of the lamps, which further reduces the risk of over exposure if they are new.

Aid in medical research
The sun affects people both negatively and positively. Everyone knows about the dangers of skin cancer due to long and intense exposure to UV radiation. However, sunlight and UV radiation also have many positive aspects. Light therapy is used to counteract depression, strengthen immunity and stimulate. UV radiation has been used for many years in the treatment of psoriasis as well as certain forms of eczema. UV radiation also induces vitamin-D production. In conjunction with this, there are indications that UV radiation can counteract some forms of cancer, such as prostate cancer, as well as rickets and other conditions.

The results of studies of how people are affected by sun radiation, and then foremost UV radiation, would be considerably more reliable if the actual UV radiation that the person being tested is exposed to could be measured. As a part of these studies, we intend to develop a measuring instrument that the test subject can carry easily and is able to register the UV radiation that the bearer is exposed to, whether it be positive or negative.

Industrial Measurement and Control Unit UV light is used in many processes in industry. Examples include:

  • Drying paint
  • Hardening adhesives
  • Purifying water

In all these examples, controlling UV light in order to make the process produce the desired result is of great interest. An industrial version of SunSitive would be excellent for this purpose.

Measurement of Transmission of UV Radiation
SunSitive can also be used to measure the UV characteristics of different materials, the foremost being the transmission of UV light. For example, this is an important property of sun lotion, and can also be of interest when checking the UV transmission of sunglasses.