Eco, EcoSpire, and EcoSD
(Legacy Design)
| Eco | EcoSpire Simple | EcoSpire Super | EcoSD | |
|---|---|---|---|---|
 |
 |
 |
 |
|
| size | 1.3×1.1cm2 | 1.3×1.1cm2 | 2x4cm2 | MicroSD |
| MCU | nRF24E1 | nrf24LE1 | nRF24LE1 | nRF24LE1 |
| accelerometer | Hitachi H34C (analog) | Analog Devices (analog) | LIS331DLH (digital) | LIS331DLH (digital) |
| Antenna | Rainsun AN9520 | Rainsun AN9520 | Antenova | Rainsun AN9520 |