Touch-n-Sense™ is our patent-pending technology, integrated into the Rapid RH® Total Reader to enable it to automatically take a reading when placed in contact with the Rapid RH® L6 Smart Sensors. Once the bottom of the Total Reader makes contact with the Smart Sensor, it takes a reading. The Total Reader holds the reading for 5 minutes, even when removed from the test hole. It also sends send readings to your mobile device via Bluetooth®. It’s just that easy.