ECC Ozone Sensor · GNSS L1+L5 · Balloon-Borne
GNSS Meteorological Ozonesonde System
Ozonesonde T-OS-300 pairs an electrochemical concentration cell (ECC) ozone sensor, supplied by the India Meteorological Department (IMD), with a complete meteorological Radiosonde payload. In a single balloon-borne flight, it captures stratospheric ozone concentration alongside temperature, humidity, pressure and GNSS-derived wind data, giving meteorological and atmospheric research programs one vertical profile of the atmosphere instead of two separate flights.
Key Features
Everything needed to profile ozone and weather together on one balloon-borne flight, from launch to burst altitude.
ECC Ozone Sensing (IMD-Provided)
Engineered for seamless compatibility with the IMD-provided ECC ozone sensor. An iodine-iodide electrochemical reaction inside the cell generates a current proportional to ozone concentration, delivering ppb-level ozone output.
Integrated Radiosonde Payload
Combines the ECC ozone sensor with a full meteorological Radiosonde in one balloon-borne unit, so pressure and GNSS-derived position and wind data are captured on the same flight as the ozone reading.
Dual-Band GNSS Wind Finding
A 72-channel DGPS receiver tracking L1 and L5 (IRNSS) bands derives wind speed (0 to 200 m/s, accuracy under 0.1 m/s) and wind direction (accuracy under 2°) throughout ascent.
Full Meteorological Sensor Suite
Temperature from -95°C to +60°C (accuracy up to ±0.2°C), humidity across 0 to 100% RH, and a shock-resistant capacitive silicon pressure sensor from 1100 down to 1 hPa.
Optimised Balloon-Borne Platform
Sized for 2000 g weather balloons for a stable ascent, with ozone profiling supported from mean sea level up to 50 km and a Styrofoam, eco-friendly sonde enclosure.
Fleet-Wide Telemetry Compatibility
Transmits at 1 Hz across 400 to 406 MHz (GFSK/LoRa, 100 mW), sharing its ground station and reception workflow with the Sertel Radiosonde and Pilotsonde.
Applications
The T-OS-300 supports ozone and upper-air monitoring programs wherever stratospheric data drives decisions.
Complete telemetry, sensor and mechanical specifications for the T-OS-300 ozonesonde.
| Parameter | Specification |
|---|---|
| Size (without ozone sensor) | 75 x 35 x 25 mm |
| Weight (without ozone sensor) | Less than 30 g |
| Battery | Li-SOCl2 |
| Battery Operating Time | 180 min |
| Transmission Rate | 1 Hz |
| Frequency Range | 400 to 406 MHz |
| Modulation | GFSK / LoRa |
| Radiated Power (Telemetry) | 100 mW |
| Bandwidth | ±3 MHz |
The T-OS-300 shares its ground station and core sounding architecture with Sertel's other balloon-borne instruments. Here is what changes when ozone sensing is added.
| Capability | Ozonesonde (T-OS-300) | Radiosonde | Pilotsonde |
|---|---|---|---|
| Ozone Sensing (ECC, IMD-supplied) | Included | Not fitted | Not fitted |
| Meteorological Sensors (Temp / Humidity / Pressure) | Included | Included | Configuration varies |
| GNSS Wind Finding | L1+L5, DGPS 72 ch | Shared architecture | Shared architecture |
| Telemetry & Ground Station | 400-406 MHz, shared station | Same ground station | Same ground station |
| Typical Use | Stratospheric ozone + weather profiling | Routine upper-air weather soundings | Pilot-balloon wind tracking |
Full Radiosonde and Pilotsonde specifications are available on their respective product pages.
FAQ
Talk to a Sertel engineer for a tailored T-OS-300 configuration, datasheet and pricing.
