00:00Need wire-level network control without spending fortune?
00:03Hunted down top 5 A-channel Ethernet relay modules under 45 bucks.
00:08Good hardware, cheap price, zero junk.
00:12First pick, 8-in-8-out TCP switch module with 4-channel pulse counter.
00:17$40.57
00:20Best feature, pulse capture alongside standard I.O.
00:24Nearly 5,000 sold, 4.7 rating.
00:27Perfect for monitoring flow meters or encoders while switching heavy loads.
00:32Second, industrial Modbus RTU in TCP relay with power over Ethernet support.
00:39Runs 4175
00:40Best feature, pole power delivery.
00:44One cable handles data and juice.
00:47No separate power brick needed near breaker box.
00:51Solid 4.6-star workhorse.
00:53Third, industrial IP relay with built-in Ethernet to RS-485 bridge and bistable relays.
01:00Costs $42.92
01:02Best feature, latching contacts.
01:06Relays keep state even if main board loses power.
01:10Bridges network directly to serial automation gear.
01:13Rated 4.7 across 3,000 buyers.
01:17Fourth, heavy-duty SmartFarm board packing 50-amp HomeFa relays.
01:22$44 flat.
01:25Best feature, massive current tolerance.
01:28Modbus TCP support paired with 50-amp contactors means running pumps, heaters, big motors without
01:33cooking PCB traces.
01:354.6 rating, built tough.
01:39Fifth, budget industrial bistable board running Modbus TCP in RS-485.
01:44Steel at $3683.
01:47Best feature, dirt-cheap price with perfect 5-star track record.
01:52Gives latching relays and network conversion for least cash.
01:56Best raw value of bunch.
01:58All product links waiting in description below.
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02:06Tell comments which board fits setup.
02:08See next one.
