The DF702 sensor is designed for waste bin (trash bin) status detection, especially for trash/garbage bin full/empty detection. It detect full/empty, flame risk, inclined (fall) or not and etc. With LoRaWAN® module, it transmit the status via gateway to networks server and application server. User can monitor the status remotely. With the application software, user can assign the collector resource work plan and route plan. Analyze task performance and find out solution to improve. Finally the objective of high efficiency , good environment, and low cost are achieved. Furthermore it is optional with NB-IoT wireless module. It is also optional for different frequency, such as 470Mhz (China), 868Mhz (Europe), 915Mhz(USA), 923Mhz (Australia,New Zealand). As it is with algorithm of low power consumption, the internal battery can work for more than 5 years (at 4 hours interval upload interval). And the IP68 level ensure the endurable working outdoor.