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http://www.lemeter.com/products/gprs-inverter-data-logger/

Overview
The GPRS inverter data logger is an embedded monitoring module that can be easily embedded inside your solar inverters. Working with web-based monitoring portal and android/IOS app, you can record and monitor the solar inverters' operation status, performance and alarms online anytime from anywhere.

By connecting with single inverters through RS485/422/232 interface, the gprs based data logger can collect all the needed data from inverter and transmit them to remote monitoring portal every 5 minutes. The GPRS data logger can connect to the internet via mobile GPRS networks by simply powering on. It supports 850M/900M/1800M/1900M dual frequency band. As a high-cost performance product, Inverter Logger only needs to be invested a little but greatly promotes the rate of return on investment of the system.

The customization service is provided for this product. We can provide total solution, including hardware customization (power supply, communication interface and other necessary parts) and embedded firmware customization according to the communication protocol of your solar inverter, for perfect integration and smooth communication with your solar inverter. Moreover, we can provide customized web monitoring portal and android/IOS app. With our customization service, you will have a completely your own product and system.

Key Feature
Satisfied for industrial application and able to work under high temperature
Power on and then it can automatically connect to the cloud
Collect the inverter data and report to the cloud every 5 minutes
The communication protocol with the inverter can be customized
Easily to be embedded into the inverter
Support 850M/900M/1800M/1900M dual frequency band
TTL or RS485 communication interface are optional