MASS I is compact and capable of acquiring high-quality 4C data in all subsea conditions.
![TGS-MASS I TGS-MASS I](https://www.tgs.com/hubfs/TGS-MASS%20I.png)
Leading-edge sensor technology
Compact and lightweight, the MASS I has a recording time of up to 65 days. High-tech features include 32-bit ADC resolution, chip-scale atomic clock, and 128 GB flash memory
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)
Fast and easy deployment
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)
Modular handling system
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)
Operational depth 0-3,000m
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)
Battery life up to 65 days
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)
Optional with Magnetic Field Sensor (MFL)
![circle-check-blue circle-check-blue](https://www.tgs.com/hubfs/circle-check-blue.png)