Yes, we do have replacement sensors for the LLA and HLA series Liquid Level Alarms, however; before assuming the float switch is the problem, you should test the alarm panel to ensure it is working properly.
To test the alarm panel using a jumper wire:
#1 Disconnect the existing float switch wires from the alarm terminal block.
#2 Bridge (short) the two corresponding alarm sensor terminals directly with a piece of insulated wire. If the panel's horn and red alarm light activate, the control panel is working, and the external sensor / control float switch is likely the problem.
If the panel is working, it is likely the sensor switch that has failed. We do have replacement sensors (control) float switches for the LLA and HLA series liquid level alarms.
HLA series High Liquid Level Alarms NO (Normally Open) replacement sensor / control switches
FSC05NO-10 10-foot cord
FSC05NO-15 15-foot cord
FSC05NO-20 20-foot cord
FSC05NO-30 30-foot cord
FSC05NO-50 50-foot cord
LLA series Low Liquid Level Alarms NC (Normally closed) replacement sensor / control switches
FSC05NC-10 10-foot cord
FSC05NC-20 20-foot cord