Water Tank Overflow Automatic Stop Control Model-OASC-1 (Auto Cut/Off on Full Level) with Water Sensor

SensaSwitch Water Tank Overflow Automatic Stop Control Model-OASC-1 (Auto Cut/Off on Full Level) with Water Sensor

SensaSwitch Water Tank Overflow Alarm Bell with Water Sensor, Model-OCA, Fixed Volume Musical Sound, White ABS Plastic

Goldmedal Liquid Water Alarm Bell (White)