YWS-310H HEAT ALERT BELL
remind you and your bike away from heat damage
A more intuitive way to remind you stay away from heat damage. (Heat Alert Color-Changing feature based onWBGT & NWS Heat Index Guidelines for youth outdoor safety.)
Eco-friendly, No batteries required
UV Tested: 313nm / 120h Continuous Exposure (Important Notice: Long time exposure to direct sun or UV light still can damage the temperature-sensing feature of the bell.).