Featuring the following key differences Increased battery capacity a battery protection bracket added vibration and buzzer functionality optimized button responsiveness a thicker profile a finger grip for handling and a 1 4 inch nut for mounting Current version does not include BME280 Flashed with LILIGO firmware includes external LoRa antenna Specification Brand Name LILYGOModel T Echo NRF52840Frequency coverage 433MHz 868MHz 915MHz 920MHz Type BluetoothCategory Wireless ModuleMaster Chip NRF52840Wireless Chip LoRa SX1262Display Screen 1 54 E PaperSensor Type BME280 TEMP Pressure SensorDevice size 89mm L x 53mm W x 45mm H Antenna length 174mmFeatures 1 Efficient multi system GNSS module for precise positioning across GPS GLONASS BeiDou and QZSS systems 2 Long range SX1262 LoRa transceiver for enhanced communication across 433 to 920 MHz 3 High performance Bluetooth 5 and support for seamless device integration 4 1 54 inch E Paper Display with clear visibility and low refresh time 5 Compact design measuring 89mm x 53 mm x 45mm for easy portability 6 USB power and charge indicators with adaptable interface button modes Package Includes 1 x LILYGO T Echo Device1 x Antenna
