Ordering codes
| Type | Antenna option |
| TR-53B | Soldering pad-hole |
| TR-53BC | Coaxial connector for antenna cable CAB-U.FL or CAB-U.FL/SMA |
| TR-53BA | On-board PCB antenna |
RF IC datasheet - MRF49XA
MCU datasheet - PIC16F886
LDO datasheet - MCP1700
ETSI certificate - EU
FCC certificate - USA (valid also for TR-53B)
CE declaration - EU
Product history - Release notes
OS v3.00 (Jan 2011)
OS v2.11 (March 2010) - First release, not for new designs