Sensitivity up to -139 dBm Maximum output power: 20dBm Application:Remote control;Remote meter reading;Home security alarm and remote keyless entry ;Industrial control; Home automation remote sensing;Individual data records; Toys control;Sensor network; Tire pressure monitoring;Health monitoring;Wireless PC peripherals;Tag reading and writi; 10.3mA @ receiver mode Sleep current Less than 200nA Data transfer rate: @ ,1.2-300kbps @ Lora TM,0.018-37.5kbps,Lora TM ,,GFSK and OOK Modulation mode 1.8-3.7 V Power supply 127 dB Dynamic Range RSSI Packet engine up to 256 bytes with Operating Temperature Range:-40 - + 85 C Built-in temperature sensor and low battery indicator Excellent blocking immunity Colour:Blue Material:PC Frequency Range: 433mhz Package Contents: 4 * LoRa1278-C1 Wireless RF Transceiver(The circuit board printing is slightly different, which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.