Complaint
| Communication | LORAWAN | NB-IOT | GPRS | WIFI | M-BUS | RS485 |
| External transmission | LORAWAN | Wireless communication (work at TCP/UDP) | M-BUS or RS485 wire | |||
| Antenna | Soft Antenna | Spring Antenna | / | |||
| Agreement | Big-end mode HEX | Modbus RTU | ||||
| Communication | Low frequency High frequency | NB-IOT | GPRS | 2.4G | M-BUS | RS485 |
| Pulse signal | / | / | 3-wire GNDS1 S2 | |||
| Screen display | LCD button switch screen | LCD magnet switch screen | ||||
| Communication distance | 2-3km | 2-3km | 2-3km | <10m | / | / |
| Wire length /line order | / | / | / | / | / | Wire length 1m Line order: 4wire |
Q: Are you trading company or manufacturer ?
A: We are factory located in Jiangyin Jiangsu Province.
Q: Does your company provide customized manufacturing?
A: We provide OEM/ODM service to our customers. Our experienced R&D team will give our customer solution in a high efficiency way.
Q: How long is your delivery time?
A: 3-5 working days for the items were in stock, 15-30days for the items out of stock.
Q: If I need a sample for pretest, do you sale sample for this inquiry?
A: Yes, we can sale sample for pretest. If you need this service, please contact us and we will give you a quotation.
Q: What is your terms of payment ?
A: Order amount less than $3000, 100% paid before shipment, order amount more than $3000,30% as deposit, 70% before shipment, or by negotiated for the both parties.
