USB Relay Controller - Two Channels with clips for DIN mount rail
M-BUS Micro-Master MR003 RS232 version Other Automation Equipment munichinautla.gob.gt
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Relay M-Bus Micro-Master Reading Device with USB Connection for Reading up to 10 M-Bus Compatible Measuring Devices such as Heat Meter Including MB Sheet Demo Software : Amazon.de: Business, Industry & Science
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eibmarkt.com - Commissioning device of M-Bus systems, micro-master USB, 87999