The proposed purchase
How to buy
Logistics proposal
Complaints proposals
Suggested use
Problem description
How to choose a suitable unit for your project?

How to choose a suitable unit for your project?

1. gsm band or 3g frequency is important for you to ensure which units can works well in your area.

2. how many input/output you need?

3. what kind of input you need? nc/no digtal signal or analog (4-20ma,0-5v,etc) or rs485 modbus meter?

4. what's the purpose of your project? sms alarm, gprs data logging or both?

5. enclosure should be ip67 or above or the regular case?

contact our sales for more information,we look forward your requests:


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