Peace of mind cooking at home starts with our Smart Choice StoveSentry Cooktop Safety Sensor. The sensor easily mounts under the vent hood or over-the-range microwave to detect when unsafe cooking temperatures are reached. Measuring the temperature and cooking surface, an alert sounds and red LED light flashes for early warning –reacting before a smoke alarm. Perfect for aging in place and newly independent chefs, the StoveSentry Cooktop Safety Sensor provides a warning when stove temperatures may need to be reduced; this serves as a reminder to prevent unattended cooking. Over time, the sensor learns your cooking habits as you acknowledge and disarm the alarm when preparing meals safely. Great for Electric Coil, Electric Smooth and Induction Appliances, not recommended for gas cooking surfaces. Replace battery annually or when alert sounds.