[Chip solution]：LLCC68
[Frequency]：850.125~930.125MHz
[Transmitter power]：22dBm
[Communication diatance]：5km
[Size]：21*36mm
[Product weight]：7.5g±0.1g
[Introduction]：E220-900T22D adopts a new generation of and a wireless serial port module (UART) designed based on the LLCC68 chip scheme. It has a variety of transmission methods, works in the (850.125 ～ 930.125MHz) frequency band(default 873.125MHz), TTL level output, compatible with 3.3V and 5V IO port voltage
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E220-230T30S[IC]：LLCC68
[Frequency]：220.125～236.125MHz
[Power]：30dBm
[Distance]：10km
[size]：25*40.5mm
[Features]：New generation of LoRa technology
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E220-230T30D[IC]：LLCC68
[Frequency]：220.125～236.125MHz
[Power]：30dBm
[Distance]：10km
[Size]：24*43mm
[Features]：New generation of LoRa spread spectrum
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E220-900T22S[Chip solution]：LLCC68
[Frequency]：850.125~930.125MHz
[Transmitter power]：22dBm
[Communication distance]：5km
[Size]：16*26mm
[Product weight]：2.2g±0.1g
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E220-900M30S[Chip solution]：LLCC68
[Frequency]：850.125~930.125MHz
[Transmitter power]：30dBm
[Distance]：10km
[Size]：38.5*24mm
[Product weight]：5.1g±0.1g