Master Meter 3G Mobile AMR

DIALOG 3D endpoint containing a RF transceiver used to communicate water consumption data in Automatic Meter Reading (AMR) systems.

FCC ID: NTAXMETER21

Fully enclosed meter
Meter dial front
Meter dial back with PCB removed
Top of PCB, notice 3 LED's bottom right and sensor used to read water meter position. Reed switch on the top to detect magnetic tampering? Antenna mounted on the right side.
Side view of antenna and batteries (2) soldered to PCB.
Unlabeled IC is MSP430F2370
Ruler for dimensions
RF circuitry on the bottom of PCB, unlabeled IC is TLMW301.
Can't seem to find a datasheet for this IC
The TLMW301 appears to be a relabeled TI (CHIPCON) CC1100
Logo from bottom left of TLMW301