This image shows a Silent Call Medallion Series Wireless Carbon Monoxide Detector with Transmitter. [1]

• Functionality: This device detects dangerous levels of invisible and odorless carbon monoxide gas.

• Compatibility: It is designed to work specifically with any Medallion Series Receiver to provide alerts.

• Power Source: The unit is powered by a 3-volt lithium battery designed for long-life, 24-hour protection.

• Safety Standards: The product complies with North American safety standards and features the ETL Mark. [1]