Kahe ana no ka ULtrawater moʻo kani ultrasonic mika wai

ʻO ka mīkini wai akamai papa 1 me ka mana mamao Ultrasonic Water Meter Bulk Water Meter No nā paipu DN50-DN300, ʻo kāna huahana maʻamau ʻo RS485 Modbus, no nā huahana ʻē aʻe, pls e kelepona mai iā mākou.