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Top picks this week. Up to 50% off the best selling products.

Complete regripping kit: Complete with all the sleeving and heat shrinking cables you need to repair or replace your wires. Robust and durable: The heat shrink tube is made of polyolefin material, which is strong and durable, not easy to break or deform, and can be used for a long time.
Chip: SIM800L
Voltage: 3.7-4.2V
Support networks: China Mobile, China Unicom global quad-band network
Module size: 2.5cm x 2.3cm
TTL serial port for serial port, you can link directly to the micro. Do not need MAX232
Power module automatically boot, home network
The integrated signal lights all the way. It flashes slowly when there is a signal, it flashes quickly when there is no signal

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