Applied Atmospheric Science
The atmosphere, measured.
Tracer Lab builds flight-proven measurement instruments.
From the shop
Instruments & flight hardware
PTHSonde
A complete, reusable radiosonde system — pressure, temperature, humidity, wind, and GPS, streamed to a desktop ground station with a full sounding analysis.
PTHSonde Ground Station
The receiving end of the PTHSonde link — a 915 MHz LoRa receiver that decodes telemetry in real time and streams it to the desktop app over USB.
PTH100 Sensor Breakout
The PTHSonde's pressure, temperature, and humidity suite as a research-grade I²C breakout — Qwiic plug-and-play, 3.3–16 V input, flown on balloons, drones, and aircraft.
Ground Station Software
The free PTHSonde ground-station app — a live Skew-T workstation with time-series telemetry, full SPC sounding analysis, a GPS map with GFS landing prediction, a balloon fill calculator, and link health.
Start a conversation
Have an atmosphere problem?
Instruments, modeling, or a full measurement campaign — tell us what you're trying to learn and we'll scope it with you.