Telem-GWM can now be powered from measurement current transformer in combination with accumulator. It wakes up on input change and periodically once a week. This solution has been behaved successfully within two months test period.
3G or 4G GPRS modem, router and RTU module with 1 or 4 Ethernet ports. Also used as standalone NTP server.
AS Martem Laki 25, 12915 Tallinn, Estonia
Phone: (+372) 639 7979 E-mail: martem [at] martem dot eu