The Liquid Level Detector is designed for the visually impaired. It alerts the user with sound and vibration alarms, when the liquid level in the cup, or glass reaches the pre-assigned detection level.
Hot Liquid Level Detector with Sound & Vibration Blind and Partially Sighted
Hot Liquid Level Detector with Sound & Vibration Alerts for Visually Impaired
Hot Liquid Level Detector with Vibration & Sound Alerts for Visually Impaired
Visually Impaired Liquid Level Detector Cup Mug Fill Alert Beep & Vibration
Cup Mug Drink Pouring Liquid Level Detector Beeper for the Visually Impaired