PVC Solar Tester Keyrings
Moulded PVC Solar Tester Keyrings with a UV sensitive patch that changes Colour according to the level of UV radiation.The UV level can be determined by comparing the centre of the dial to the four segments in the watch face.The logo is moulded into the back & supplied with a Split Ring & Chain.Visit the Complete Business Gifts website for more information on PVC Solar Tester Keyrings