Fluker's 73015 Reptile Calcium Supplement Without Vitamin D3, 2-Ounce

Product Feature:
This reusable card can measure ultraviolet (UVB/UVA) radiation accurately in 10 seconds. Hold the card under the UVB lamp at the basking site (within 5cm/2in distance to the lamp) to check if the UVB /UVA is available or not.
"Purple" light will be shown on the card under the UVB lamp, and means that the UVB/UVA is available.
Replace the bulb annually or sooner if the card doesn't show any color, card can be used up to 500 times when used in 10-second increments

Notice:
Do not place the card in the sunlight.
Please place the card back to the card sleeve when not in use.

UVB tester reptile card measures the intensity of the UVB rays of UV fluorescent lamps.
The card changes colors from White to Purple based on the UVB ray strength.
2PCS long-lasting plastic card, credit card size, 3.4 inch x 2.1 inch.
New high-tech, Non-Toxic, environmentally friendly detection material is printed on the card to measure the UVB rays of UVB lamps.
Can be used over and over again up to 500 times. Great handout.
UVB tester reptile card measures the intensity of the UVB rays of UV fluorescent lamps.
The card changes colors from White to Purple based on the UVB ray strength.
2PCS long-lasting plastic card, credit card size, 3.4 inch x 2.1 inch.
New high-tech, Non-Toxic, environmentally friendly detection material is printed on the card to measure the UVB rays of UVB lamps.
Can be used over and over again up to 500 times. Great handout.

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