Draw Your Own
Overflow Sensors

Transform any AC drain into a smart leak detector with just a pencil stroke

TraceSense uses conductive graphite technology that lets HVAC technicians draw custom sensors directly onto drain cables and pans. When water levels rise and touch your hand-drawn traces, the circuit completes and triggers an alert—preventing costly water damage.

"An AC technician watches in disbelief as they simply draw a line with a special pencil on a drain pipe, connect two small wires, and suddenly have a working overflow sensor that would've cost $80 and required complex installation—and they can customize the sensor height and shape for any unique installation."

Replacement Pencils

$24
  • 3-Pack Refill
  • Same Conductive Formula
  • ~50 Sensors per Pencil
  • Free Shipping
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