Adafruit Feather 32u4 with RFM69HCW Packet Radio - 868/915MHz r3 Arduino is a practical sensor

Arduino is a practical sensor from Pololu for students

This module has a wireless working frequency of 443

7V LiIon/LiPoly battery

The Pro Mini Atmega328 8Mhz Arduino Compatible can be powered using an external power source

Adafruit Feather 32u4 with RFM69HCW Packet Radio - 868/915MHz r3 Arduino is a practical sensorThis is a feather board that has 32u4 Radio RFM69HCW 900MHz. Also called RadioFruits that has a microncontroller, a packet radio transceiver, with built in USB and battery charging. This is the 900 MHz radio version, which can be used for either 868MHz or 915MHz transmission reception the exact radio frequency is determined when you load the software since it can be tuned around dynamically.