Gems Series 26 Low-water cutoff open board is designed for boiler low-water cuatoff protection. A snap-through standoff mounting device is available for the Series 26. Optional Power Outage feature resets after nuisance outages. The optional reset button is used when the device has been deactivated because of low-water condition. Reset is functional only if water has returned to normal level. Built-in 3 second time delay is standard. Up to 90 seconds available for increasing and decreasing levels.