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RS485 Transmitter

This RS485 transmitter is specifically designed to pair with SemeaTech 4SMART-C01 sensor modules. The transformation of TTL-485 signals from the modules can seamlessly occur by directly connecting them to the transmitter, requiring no configuration or adjustments.

4ECM-SMART Module PCBA

Product Model: 4ECM-Smart
Detectable Gas Types: Toxic and harmful gases
Measurement Error: < ±5%FS
Operating Voltage: 4 ~ 6 VDC
Operating Current: ≤ 2 mA @ 5.0 VDC
Output Mode: UART (3.3V TTL)
Operating Temperature: -20℃ ~ 50℃

4LEL-SMART Module PCBA

Product Model: 4LEL-Smart
Detectable Gas Types: Combustible gas
Measurement Error: < ±5%FS
Operating Voltage: 3.3 ~ 3.6 VDC
Operating Current: ≤ 110 mA @ 3.3 VDC
Output Mode: UART (3.3V TTL)
Operating Temperature: 0℃ ~ 40℃

4LEL-Smart Module

Product Model: 4LEL-Smart
Detectable Gas Types: Combustible gas
Measurement Error: < ±5%FS
Operating Voltage: 3.3 ~ 3.6 VDC
Operating Current: ≤ 110 mA @ 3.3 VDC
Output Mode: UART (3.3V TTL)
Operating Temperature: 0℃ ~ 40℃

4ECM-SMART Module

Product Model: 4ECM-Smart
Detectable Gas Types: Toxic and harmful gases
Measurement Error: < ±5%FS
Operating Voltage: 4 ~ 6 VDC
Operating Current: ≤ 2 mA @ 5.0 VDC
Output Mode: UART (3.3V TTL)
Operating Temperature: -20℃ ~ 50℃

7 SMART Module

Detection Range: Refer to sensor data sheet
Operating Voltage: 3.2 ~ 5.5 V
Operating Current: ≤ 5 mA @ 5V
Operating Temperature: -20℃ ~ 55℃
Output Mode: UART (3.3V TTL) I²C (3.3V TTL)
Dimensions：Φ 33.5 x 31 mm

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