STJ Live Cisterns St. John, USVI
Sensor puck availability

Sensor Puck V1.1 is building on the bench.

The first hardware pieces are here. Bench work is underway now: sensor checks, low-voltage power checks, connection testing, and the first STJ Sensor Puck build path.

Prototype validation and bench testing are still in progress. This is not final field hardware yet.
Prototype status Parts arrived
Current stage Tinkering on the bench…
Prototypes building Bench validation
Installations pending Not open yet
Field testing pending After bench validation
Preorders coming soon Coming soon
Preorders coming soon.

Future signup will include service, privacy, alert, installation, and data-use terms.

STJ water-level sensor puck

STJ Sensor Puck

The STJ water-level sensor puck is a sealed water-level puck mounted above cistern water. It sends live readings to the STJ Live Cisterns dashboard while power and network support stays outside the cistern.

Mounted above stored water Sensor never touches the water Phone and computer visibility
Ask about sensor install Service options
STJ Sensor Puck sealed product render

Sealed exterior puck with dry cable path.

STJ Sensor Puck installed above stored cistern water

Mounted above the water, with the cable kept dry.

Above the water

Measures the surface without entering the water.

The puck mounts above stored water and measures distance to the water surface. The sensor never touches the water, and the cable stays above water so the service path remains dry.

01Ceiling mount

Placed near the access opening or a practical overhead measurement point.

02Dry cable route

The cable exits above the water line and routes toward the service side.

03Distance reading

The sensor reads the gap between the puck and water surface.

04Dashboard update

Readings become usable level context for the property.

How it connects

Three ways to connect the puck.

The puck mounts inside the cistern above the water. Power and network support stay outside — at the wall. The right path depends on your property's Wi-Fi signal and cable distance.

PATH 01

Direct PoE connection

Best when the puck can reach the property network cleanly from the service area.

  • One low-voltage cable runs from the PoE injector through the service route to the puck.
  • PoE injector and line-voltage power stay outside the cistern.
  • Dashboard and alerts show the customer what the puck reports.
AC OUTLET
PoE INJECTOR
CAT5e / CAT6
INLINE COUPLER
STJ PUCK INSIDE CISTERN
Dashboard + alerts
PATH 02

Wi-Fi extender support

Used when concrete, distance, or placement weakens the puck signal near the cistern.

  • A wall-side extender supports the nearby network handoff.
  • Power equipment, Wi-Fi support, and service access stay outside the cistern.
  • The puck still reports to the STJ Live Cisterns dashboard and alerts.
AC OUTLET
PoE INJECTOR
Wi-Fi EXTENDER
CAT5e / CAT6
INLINE COUPLER
STJ PUCK INSIDE CISTERN
Dashboard + alerts
PATH 03

Wi-Fi bridge connection

Used for longer runs, pump rooms, or installs needing a stronger local support point.

  • A bridge links the home router to a stronger wall-side support point.
  • The cable and inline coupler remain part of the low-voltage service route.
  • The customer view stays the same: dashboard and alerts.
HOME ROUTER
Wi-Fi BRIDGE
CAT5e / CAT6
INLINE COUPLER
STJ PUCK INSIDE CISTERN
Dashboard + alerts
  • Support equipment stays outside the cistern.
  • No mains AC inside the puck or cistern.
  • Final path chosen during install.
Dashboard and alerts

Water level becomes a useful decision.

STJ Live Cisterns turns the puck reading into percent full, gallons or inches context, alert status, and delivery urgency so homeowners and villa managers can act before a dry-cistern problem.

STJ Live Cisterns Estate Cistern
Water level 62% 8,420 gallons estimated
Depth context74 in
AlertNormal
DeliveryMonitor
Last update4 min
Plan the install

Plan install and site conditions first.

Share cistern location, estimated range constraints, and property type so STJ Live Cisterns can recommend the right Sensor Puck and connectivity approach.

Contact for sensor install See portfolio path