The Lumix DMC-TS30 has a better sensor type than most cameras that have been available for a comparable time to it. This camera has a CCD sensor type, whereas most similar spec digital cameras that have been on the market for around the same time as it have a MOS sensor type. CCD sensors produce high quality, low-noise images but consume a lot more power than CMOS sensors. CCD is the most common image sensor type used in digital cameras.
This digital camera's sensor type (CCD) is in fact the best sensor type amongst all digital cameras of this age and type.
The worst sensor type amongst similar types of digital camera is MOS.