Gaia 200 – Product description

Last update: 11/04/2024
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Product Description

Gaia 200 is a wireless transmitter for temperature measurements using type K thermocouples. It is the industry’s most cost-efficient solution for real-time monitoring of the curing of concrete.

Install the thermocouple, connect it to the Gaia 200 and it will automatically start sending the temperature data continuously. Gaia 200 uses Sigfox, the world’s largest IoT network, which offers a longer range than WiFi and Bluetooth. The data is transmitted to the cloud through nearby Sigfox antennas or gateways.

The temperature readings are available in the Maturix® Web Portal. The concrete strength is estimated based on the temperature history using the Maturity Method (ASTM C1074). All of this happens automatically and in real-time, and you can access the data from anywhere.

The rugged and weather-resistant Gaia 200 is designed to withstand the harsh environment at construction sites. The transmitter can be reused again and again as only the economical thermocouple is embedded into the concrete.


Gaia 200 is available in two variants, one that is certified for use in Sigfox RC1 (20200-1), one that is certified for use in Sigfox RC2 (20200-2) and one that is certified for use in Sigfox RC4 (20200-4).



Temperature measurements

RangeType K thermocouple: -200 to 1260 °C (-328 to 2300 °F) 1
ToleranceType K thermocouple: ±1.5 °C (±2.7 °F) 2
Internal digital sensor: ±0.3 °C (±0.54 °F)
Resolution±0.1 °C (±0.18 °F)
Thermocouples supportedType K (Ni-Cr / Ni-Al)


Data transmissions

Transmission interval

Cable connected: Once every 15 mins 3
No cable connected: Once every 6 hours
Downlink: Once every week




Sigfox RC1, Sigfox RC2, Sigfox RC4

Wireless signal range (using Sigfox Gateway)

Up to 3 km (1.86 mi) 4


Use and storage


-30 to 50 °C (-22 to 122 °F)


0 to 100 %RH

Ideal storage conditions

Indoor, 20 to 30 °C (68 to 86 °F)


Mechanical specifications

Dimensions (L x W x H)

148.3 x 113 x 50.7 mm (5.84 x 4.45 x 2 in)


560 g (19.75 oz)

MaterialsBody: ASA plastic (white)
Protective edge: TPU elastomer (orange)
Battery type4 x AA, 1.5 V alkaline/lithium or 1.2V rechargable 5
Socket typeMiniature, type K, female
LEDMulti color LED
IP ratingIP64




CE, Radio Equipment Directive (RED), RoHS


Compatible software


Maturix® Precast
Maturix® In-situ

1 Dependent on type K thermocouple. Max. temperature difference between device and thermocouple measurement is -200 °C and +1260 °C.
2 The tolerance depends on the type K thermocouple.
3 Learn more about changing the intervals:
4 Depending on environment. Learn more:
5 Alkaline batteries included.

Technical Drawing of Gaia 200 and Type K Thermocouple


Compatible Probe