LiftStation

• Utility tenders and SCADA integrators take 12–24 months → sold direct to private owners and their pump contractors, card payment, 1-hour install, no SCADA
• Mission ($1,195 + service) and Sensaphone Sentinel ($1,561 + $24.95/month) are proven alarms → $399 hardware plus pump health and acknowledged voice callouts
• Wet wells are NFPA 820 classified areas → nothing goes into the wet well; it reads only the safe-side contacts of existing IS or float relays
• Intrinsically safe level transducers cost about $1,468 plus a barrier → inflow and pump-down rate inferred from float timing and wet-well geometry
• Li-ion backup in a hot outdoor panel is a hazard → primary lithium D-cell used only during outages, no charging
• Remote pump control is a liability → rev A has no pump control; one relay drives only a local strobe

Park managerOwnerPump contractor

1. 01Trigger: the high-level float closes at 02:07 on a holiday weekend; the lag pump has failed
2. 02Detection: the board sees the float relay contact and that pump 2 draws no current; the alarm reaches the cloud in under 15 s
3. 03Alert: voice call to the manager, escalating to the owner and then the contractor every 5 minutes until someone presses 1
4. 04Action: the contractor arrives with the live page open (floats, currents, estimated time to overflow) and resets the tripped pump

Outcome: Overflow and weekend emergency avoided, about $1,500 plus any regulator costs (est.)