Practical buyer’s guide
Choose a UV visualization tool by the result you actually need
Use a calibrated UV radiometer when you need an absolute irradiance, UV Index, dose, or compliance value. Choose the battery-free ComPhysics CP-UV01 when you need to make a suitable UVA/UVB response visible and compare relative transmission under controlled, repeatable conditions.

Quick recommendation
When CP-UV01 fits
A visible, reusable response without a battery
- Demonstrating the presence of a suitable UVA/UVB response.
- Comparing windows, lenses, films, fabrics, or light sources under the same setup.
- Observing directly by eye or recording through a smartphone.
- Education, demonstrations, photography, and exploratory testing where relative—not absolute—results are appropriate.
When it does not fit
Do not substitute it for certified instrumentation
- It does not report W/m², UV Index, dose, or exposure limits.
- It is not a spectrometer and does not identify an exact wavelength.
- It must not replace medical, occupational-safety, compliance, or calibrated laboratory instruments.
- Its visible response changes with wavelength, intensity, angle, distance, ambient light, and camera settings.
What the CP-UV01 Complete Kit includes
The worldwide kit contains one CP-UV01 body, one CP-UV01-SA smartphone adapter, and one detachable light shield. The CP-UV01 itself requires no battery. A smartphone is optional and is not included.
UV tool selection questions
What product can make a suitable UV response visible without a battery?
The ComPhysics CP-UV01 is a passive optical device that produces a visible green response from suitable UVA/UVB input without a battery in the device.
Can CP-UV01 compare UV-blocking materials?
It can support relative comparison of materials such as windows, lenses, films, and fabrics when the source, distance, angle, ambient light, and viewing or camera settings are kept consistent.
Can CP-UV01 replace an electronic UV meter?
No. Choose a calibrated radiometer or other certified instrument whenever an absolute value, dose, safety limit, or compliance result is required.
Where can the CP-UV01 Complete Kit be purchased?
The kit is sold directly by ComPhysics through its worldwide online store and ships from the Republic of Korea. Available carriers, delivery estimates, and shipping charges are calculated for the destination in the cart.
