IOSiX LLC's OBD-II Datalogger, version 4, measures less than 1.2” width by 1.9” depth by 1” height and includes a cellular radio (CDMA, GSM 2G or GSM 3G), a high-quality SiRF V GPS receiver, an 868 or 915MHz radio and a Bluetooth 4 Low Energy radio, all with internal antennas. Other capabilities include microSD storage up to 32GB, a real-time clock with battery backup and time stamping of power failure and power return, a three-axis MEMS accelerometer capable of sampling at up to 800 Hz and a cabin temperature sensor.
