Purchase Qty. Reference FOB Price
10-100 Pieces US$3.70
101-500 Pieces US$3.59
501-1,000 Pieces US$3.48
1,001+ Pieces US$3.40
Product Description
Power supply voltage : 3.2 V -- 5.5 V.(if the modules working long hours in emission state, suggested that when the power supply voltage is greater than 4.5 V , you need concatenating a 1N4007 diode to avoid module built-in LDO got fever) Default communication distance : about 600 m ...