Digital Measure's TCP/IP Voltmeter Includes Two Channels, Three Relays, and Ethernet Connectivity

Slovakian electronics firm Digital Measure has launched a voltmeter with a difference: not only does it include three user-programmable relays, but it sends measurement data out over your network.

"[This] TCP/IP voltmeter/relay is a universal device for measuring DC voltage over the Internet," Digital Measure explains of the board. "The use is mainly in measuring and monitoring voltage at a distance. It is suitable e.g. for measuring batteries in solar systems and other devices that are powered by batteries."

To do so, the board includes two DC voltmeters supporting 0-70VDC in either polarity with full galvanic isolation, but that's only half its functionality: the board also includes a trio of relays, designed for remote triggering under user programming in order to allow the board to double as a control system for external hardware.

Its key feature, though, is connectivity. The board is designed to look in to a network via an on-board Ethernet port and provide easy remote access to measurement data.

There's an on-board web server for browser-based monitoring, an SNMP agent, and a simple TCP server. It also supports transmission to remote databases, including integrated ThingSpeak support — though it can also push to any remote system supporting HTTP POST methods.

For those who require true remote access, the voltmeter offers support for two dynamic DNS services — and, as a final feature, can send out alerts if voltage readings reach configurable levels.

The board is now available to buy on the Digital Measure Tindie store, priced at $63.