2. Single button to finish learning setting.
3. Normally close and normally open can be exchanged.
4. Easy to install.
2. Function operation:
2.1. Quick setting:Press the SET button for less then two seconds to finish quick setting.
2.2. Middle valve setting:Press the SET button for two to five seconds to finish setting valve A;
Press the SET button again to finish setting valve B.
*Middle valve=(A+B)/2*
2.3. N.O./N.C. switch:Press the SET button for six to ten secondsto finish N.O./N.C. switching.
2.4. Lock/Unlock switch:Press the SET button for eleven to twenty secondsto finish Lock/Unlock switching.
2.5. Factory-fresh state:Press the SET button for over twenty seconds to return factory-fresh state.