Products in development

Built to
survive summer.

Three products. One physics stack. Everything below runs on the same BaSO₄-based PDRC coating, PCM thermal mass, and thermoelectric harvest architecture.

GTN field station

BounceBox

The BounceBox is a self-powered ground truth sensor enclosure engineered for permanent outdoor deployment with zero grid dependency. PDRC on all six faces. Thermoelectric generators on the inner shell. PCM thermal buffer between them. Everything else hangs on DIN rail inside.

Enclosure

Thermakon shell

  • ~280 × 160 × 80mm aluminum body
  • PDRC coating all 6 faces — 95%+ solar reflectance
  • TEG tiles on inner shell, avg 1.5–2.5W harvest
  • 15mm PCM liner, 76–80°F melt point
  • 8mm air break between PCM and DIN rail
  • 3× SMA bulkhead feedthroughs for external antennas
  • North arrow molded into lid for alignment
  • IP67 rated, single pole mount
Electronics

Compute + comms

  • Pi Zero 2W — primary compute, duty-cycled
  • 10Ah LiFePO₄ internal battery
  • Bidirectional USB-C PD BMS bridge (patent pending)
  • Cellular modem, duty-cycled to match TEG budget
  • Triggered camera — event-based capture
  • Ecowitt WS90 weather station integration
  • DS18B20 1-Wire thermal probes
  • InfluxDB → Grafana data pipeline
Power budget

Energy balance

  • TEG harvest: 1.5–2.5W continuous (ΔT dependent)
  • Pi Zero 2W idle: ~0.5W — viable at minimum ΔT
  • Cellular active draw: ~1.8W — duty-cycled to budget
  • Camera trigger: ~50mA burst, milliseconds
  • Net positive in any direct sun condition
  • 10Ah buffer = ~48hr calm-weather reserve
Deployment

Install profile

  • Single-pole mount — EMT conduit or unistrut
  • No grid connection required
  • No external solar panel required
  • North-oriented lid for consistent ΔT characterization
  • Cellular data — no local WiFi dependency
  • Designed for ridge, hilltop, and exposed terrain
Thermakon branding

"Parse the light. Yeet the heat. Keep your cool."

The name Thermakon derives from thermal + pharmakon — the Greek word for both poison and remedy. Heat is the problem and the power source. Also registered: thermakon.com

Retrofit module

Thermally smooth
upgrade kit

The full-siding retrofit — BounceBox-class thermal management applied to any existing building exterior. PDRC coating on all weather-exposed faces with integrated TEG siding panels that harvest the ΔT between direct sun and interior wall surface.

Siding system

TEG siding panels

  • PDRC-coated outer face — reflects solar load
  • TEG tiles bonded to inner panel face
  • Clip-rail mount — swappable, field-replaceable
  • Ventilated standoff doubles as angular selective emitter
  • Modular 300 × 600mm panel format
  • Hot side toward wall mass — maximizes ΔT
  • Harvest: 0.5–1.5W per panel in peak sun
Roofing

CoolSeal roof system

  • Elastomeric BaSO₄-based PDRC coating
  • Applied by foam roller or airless sprayer
  • Works over existing membrane, metal, or asphalt
  • Type B panel option: PDRC + TEG + PCM laminate
  • PCM layer buffers peak load — decouples thermal mass from structure
  • Compatible with clip-rail for field-replaceable TEG tiles
Expected performance — Texas summer baseline
Roof surface temp reduction
−20°C
Attic air temp reduction
−12°C
A/C load reduction
15–30%
TEG harvest — full siding deployment
50–200W
First product

GTN Weather Station

The first shippable unit in the Ground Truth Network product line. A professional-grade hyperlocal weather station purpose-built for terrain-constrained deployment in the Texas Hill Country and beyond.

Hardware

Ecowitt WS90

  • Ultrasonic wind speed + direction
  • Rain gauge — self-emptying tipping bucket
  • Solar radiation sensor
  • UV index
  • Temperature + humidity — radiation-shielded
  • Barometric pressure
  • GW3000 gateway — local + cloud data relay
Data pipeline

Local + network

  • python-ecowitt local polling
  • InfluxDB time-series storage on NAS
  • Grafana dashboards — live and historical
  • MQTT for internal event bus
  • Ecowitt cloud for public data sharing
  • Pre-PDRC baseline logging — non-recoverable data
GTN placement

Positioning logic

  • Ridge and hilltop priority — max sky view factor
  • 5° WS90 blind spot compensated by mast geometry
  • Eastern face preference — morning thermal gradient
  • Stations placed before any PDRC installation
  • Data rights clause non-negotiable in all installs
  • Network spacing: one per square mile minimum
Field imperative

Pre-installation baseline data is non-recoverable. Every GTN station must be logging before the first PDRC surface is applied. You cannot go back and measure what the heat was before.

Interested in a station?

GTN pilot deployments are open to property owners in the Wimberley and greater Hill Country region. Data sharing agreement required.

Contact us →