Transmission Frequency:433.92MHZ7.Transmission Power:>10dBM8. Quality inspection report10.Size:9.4 7.5 2.7cm11.Weight:200g Features:1. SMART CHIP WITH O-SECOND RESPONSE:0 seconds 6 types of abnormal problems with zero latency/0.3 second sens or detects data once/6 seconds update the data on the display screen once.5.