Tester Reptile Lamp Uv Sensor Reptile Uva Uvb Fluorescent Lamp Tester Card, Set Of 2

Card changes colors from White to Purple based on the UVB & UVA ray strength.

2PCS Durable plastic card, credit card size, 3.4 inch x 2.1 inch.

New High Tech, Non-Toxic, environmentally friendly detection matrial that is printed on the card to measure the UVB/UVA rays of UVB lamps.

Can be used over and over again up to 500 times. Great handout.