The E70-433T30S with Wireless Modules RoHS, manufactured by Ebyte, is an adjustable frequency UART (Universal Asynchronous Receiver/Transmitter) transceiver module with receiver and transmitter functionality. It operates in the 433MHz frequency band and supports both FSK (Frequency Shift Keying) and GFSK (Gaussian Frequency Shift Keying) modulation, both with data rates up to 300Kbps. The module has a low power consumption, ranging from 1.9mA at an output power of 0dbm to 4.2mA at an output power of 20dbm. It also has an on-chip temperature sensor, that monitors and reports on the device temperature. The module is RoHS compliant, meaning that it does not contain any hazardous materials.