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Teltonika Alternative: Wiman 4G Modbus Gateways

Industrial 4G LTE gateways built in Chennai, stocked and supported in India.

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If you are evaluating Teltonika Networks RUT cellular routers or TRB gateways for a Modbus telemetry site in India, it is worth knowing what a domestic manufacturer changes about the same job. Wiman designs and builds the WT460M, WT470M, WT400M and WT410DM in Chennai — RS-485 Modbus RTU in, MQTT or HTTPS out over 4G LTE, with store & forward when the link drops.

This page compares buying models, not build quality. Teltonika Networks is a vertically integrated manufacturer with its own R&D and its own factory in Lithuania and a track record going back to 1998, their hardware is well regarded, and we set out plainly further down where they are the better pick. Everything we say about their products here is taken from their own public documentation; we have not bench-tested their hardware, so we publish no comparative performance figures and no price comparison.

Teltonika and Teltonika Networks are trade marks of their owner, used here only to identify the products people compare ours against. Wiman is an independent Indian manufacturer — not a Teltonika partner, reseller or affiliate — and nothing on this page is endorsed by them.

What you get by building it here

Built in Chennai, quoted in rupeesOur gateways are manufactured here and quoted in rupees, so the price you agree is not exposed to import duty, freight, customs clearing or exchange-rate movement between purchase order and delivery — and it does not move if the project slips a quarter. (Applicable Indian taxes and delivery terms appear on the quotation as usual.) That is a difference in cost structure; we make no claim about anyone else's pricing.

Finished stock held in ChennaiWe hold built units in Chennai and ship domestically, so there is no import or customs-clearance step in the delivery timeline. When a commissioning window closes in ten days, or an integrator needs twenty gateways this week, that matters. Availability depends on the model and the quantity on the day, so ask us to confirm current stock against your requirement before you plan the site visit.

Your server, no per-device platform accountThe gateway pushes to the endpoints you nominate over MQTT or HTTPS. Our published WT470M and WT400M specifications list dual-server logging, and the WT460M is documented for dual-server push, so your SCADA and your customer's dashboard can both be fed from one gateway. Nothing in the data path requires a Wiman cloud account or a per-device licence to keep a gateway reporting.

Store & forward across the listed rangeEvery model on this page lists store & forward: readings are buffered locally when the link drops and flushed when it returns — WT460M, WT470M, WT400M and WT410DM alike. On a remote pump house or a plant with intermittent 4G, that turns a gap in the trend into a backfilled record, up to the capacity of the on-device buffer. Our store & forward guide walks through how the buffer and the flush order behave.

OEM and white-label from tens of unitsWe put your brand on the enclosure, your model number on the label and your defaults in the firmware at quantities that suit a first production batch — tens or a few hundred units. A bespoke register map, a non-standard payload format or a specific connector are engineering tasks we take on and quote separately from the hardware, because that is the volume most Indian projects actually start at.

Application logic built into the deviceOur CPCB Gateway is a WT460M variant built for OCEMS reporting: LAN-to-4G failover and an inbuilt logger that back-fills delayed data with its original timestamps. It is integrated and deployed on CPCB's central portal today, and direct SPCB-server transmission — for states that operate their own server — is in active development. We work the same way on DLMS metering, zero-export solar control and site-specific SCADA payloads. If your application has an Indian rulebook, we can build to that rulebook. If you would rather configure a capable general-purpose device yourself, that is an entirely legitimate preference and a good reason to look at their catalogue instead.

Direct access to the firmware engineer, in your timezoneWhen a Modbus slave stops answering on a plant floor, you can talk to the people who wrote the firmware — in IST, in English or Tamil, with no distributor tier between you and the answer. Response times and escalation cover are agreed with you in writing rather than assumed from a web page. This is about proximity and escalation depth, not a comment on anyone else's support quality: Teltonika's public wiki and community forum are open, detailed and genuinely useful.

Service, warranty and RMA handled inside IndiaA unit that needs attention comes back to Chennai. No cross-border shipment, no customs paperwork on a returned board, no export documentation for a swap unit. For a fleet spread across several states, keeping the whole service loop domestic is usually the simpler operational answer. Our warranty terms are stated on the quotation — ask for them alongside the price.

Make-in-India procurement documentationGovernment, PSU and many utility or CPCB-linked tenders apply the Public Procurement (Preference to Make in India) Order, which gives purchase preference to Class-I local suppliers (at least 50% local content) and Class-II suppliers (at least 20%), calculated net of imported content including customs duties. Local content is self-certified by the supplier under that Order. Because we manufacture here, we can engage with that clause and state our local-content position for the specific model you are quoting. Send us the tender's local-content wording and we will tell you precisely what we can produce.

Free engineering tools, no loginOur Modbus Scanner, hex/IEEE-754 converter, cellular band lookup by country and SIM data calculator are open to anyone — including engineers who end up buying someone else's hardware. They exist because commissioning goes faster when you can prove the register map and the byte order before you leave the office.

Our published specifications

Every figure below is our own, taken from the product datasheet. We do not publish competitor specifications here — check theirs against their current datasheet and compare directly.

Item	Wiman	Notes
Cellular	4G LTE — WT460M; 4G LTE with 2G fallback — WT470M, WT400M, WT410DM	The WT470M, WT400M and WT410DM specifications list 2G fallback, so the unit can drop to a 2G bearer where LTE coverage is patchy; the WT460M is listed as 4G LTE.
Serial field bus	RS-485, Modbus RTU — all four models	These models are RS-485 Modbus only. RS-232 and analog inputs are not on this range — if your site needs them, see the section on when Teltonika is the better choice.
Second network path	Ethernet — WT460M; Wi-Fi 2.4 GHz b/g/n — WT470M; none — WT400M, WT410DM	The WT460M pairs 4G LTE with Ethernet and the WT470M pairs 4G LTE with Wi-Fi. The WT400M and WT410DM are cellular-only.
Modbus roles	Modbus RTU + Modbus TCP — WT460M; Modbus RTU — WT470M, WT400M, WT410DM	The PRO-series WT600M lists Modbus RTU plus Modbus TCP master over a shared LAN; note that it is an Ethernet gateway with no cellular uplink.
Northbound protocols	MQTT, HTTPS, store & forward — all four models	A custom payload schema for your server is an engineering option quoted separately, not a standard feature of the listed models.
Server targets	Dual server — WT470M, WT400M (also the PRO-series WT600M and WT700M); single server — WT410DM	Dual server means the gateway logs to two independent server endpoints. Dual-server push is documented on the WT460M product page but is not carried as a line in its published specification table, so ask us to confirm it in writing if it is a tender requirement.
Maximum Modbus slaves	64 (RS-485 + LoRa) — WT470M, WT400M; 32 (RS-485 Modbus) — WT410DM	Figures as listed in our published model specifications. Our WT460M specification does not carry a slave count — ask us and we will confirm it against the current datasheet.
Registers (dynamic read)	3,000 — WT470M, WT400M; 1,800 — WT410DM	As published in our model specifications; the register map is defined during configuration. Send us your poll set and we will confirm it fits before you order.
Sub-GHz option	LoRa available across WT460M, WT470M, WT400M and WT410DM	For sensors that cannot be reached with a cable run. Confirm the LoRa variant for your model when ordering.
Mounting	DIN rail — WT460M; DIN rail or wall as DM / FM build variants — WT470M, WT400M; DIN rail or wall from the same device — WT410DM	Only the WT410DM is listed as covering both mounting styles in one device. On the WT470M and WT400M, the DM (DIN) and FM (wall) builds are ordered separately.
Power	12–24 V DC — WT410DM	Refer to the per-model datasheet, or ask us, for the supply range on the other models.
Certifications listed	CE — WT460M, WT400M, WT410DM; FCC — WT460M; none currently listed — WT470M	That is what our current published product data lists. For an Indian regulatory clause — MTCTE/TEC or ETA-WPC, for example — tell us the exact clause and the model you intend to use and we will confirm the current status in writing rather than assume it on a web page.
Manufacturing and support	Designed, built, firmware-supported and serviced from Chennai, India	Relevant where a tender applies local-content purchase preference, which the supplier self-certifies under the Make in India procurement order.

When Teltonika Networks is the better choice

Teltonika Networks is the better choice in a number of real situations, and we would rather you know that up front than discover it after purchase. If you need a full-featured industrial router rather than a Modbus telemetry gateway, that is their category and not ours. Their catalogue runs from compact DIN-rail IoT gateways through to 5G routers and managed Ethernet switches, with models offering multiple LAN ports, while our range is an RS-485 Modbus gateway with a cellular, Ethernet or Wi-Fi uplink and no router-class networking stack behind it.

In the area where we actually compete, their built-in Modbus feature set is mature and broader than ours out of the box. Their documentation describes Modbus TCP master and slave, Modbus RTU, a Modbus-TCP-over-serial gateway that redirects TCP traffic to an RTU device by Server ID, an MQTT Modbus gateway with REQUEST/RESPONSE topic translation, and register-value alarms that can trigger a Modbus write or change an output state on a condition — all configurable from the web UI without writing code.

If that set already covers your application, configuring their device will very likely be faster than commissioning a custom build from us, and you should do that. They are a vertically integrated manufacturer — founded in 1998, with their own R&D in Kaunas and their own factory in Vilnius — so the supply chain and the quality control are genuinely theirs.

Their public wiki is, in our honest assessment, among the strongest documentation in this market segment: per-model configuration pages, step-by-step Modbus and MQTT guides, an open community forum and full firmware archives with separate stable and latest channels mean an integrator can de-risk an integration before spending a rupee.

RutOS being one OpenWrt-based operating system across the whole catalogue means skills and scripts transfer between models, and their published GPL source and official SDK let your own team build and install packages on the device. If you want to write your own edge logic, that openness matters, and we do not match it. Their RMS platform is a mature, purpose-built product for managing large fleets — remote access, monitoring, bulk configuration and firmware campaigns — licensed per device, with a 30-day free trial per compatible device.

Their devices are fully configurable locally through the web UI without it: RMS is an option, not a requirement. If your estate spans several countries and you want one SKU with carrier certifications and stocking distributors in each of them, their global availability — Mouser and DigiKey, plus a TD SYNNEX distribution partnership announced in 2025 — is genuinely hard to match.

Their published standard product warranty is 24 months, with a defined, documented RMA process and extended warranty available to purchase. Their published industrial specifications are serious engineering: wide operating temperature ranges, dual SIM, and reverse-polarity and surge protection on models such as the TRB245.

They have also done the Indian regulatory work. ETA-WPC approvals are published for models including the RUT240, RUT241, RUT200, RUT901, RUT951, RUTX50 and RUTXR1, and MTCTE/TEC certification pages exist for models including the RUT951, RUT956, RUT901, RUT906, RUTM50, RUTM09 and TSW114. Teltonika India Private Limited is an active company registered with ROC Bangalore since November 2023.

Choosing Teltonika in India is not a compliance risk, and anyone who suggests otherwise is simply wrong. Finally, if your site needs RS-232 or analog inputs, or you want a large mixed estate of routers, gateways and switches from a single vendor running one operating system, they are the sensible pick. Two honest caveats about this page.

We have not bench-tested their hardware against ours, so we make no claim about throughput, RF performance, thermals, power draw or reliability in either direction. And we publish no price comparison, because landed cost in India depends on the variant, the distributor, duty and the exchange rate on the day.

Questions we get asked

Is a Wiman gateway a drop-in replacement for a RUT router or TRB gateway?

For an RS-485 Modbus telemetry role, usually yes: you point it at the same slaves, define the register map and give it your server endpoint. It is not a drop-in replacement for a router role — if the existing unit is doing firewalling, VPN termination, VLAN routing or serving a LAN of clients, that is a different product category and you should keep a router there. We have not tested against every RUT or TRB variant, so send us your current register map and payload format and we will tell you plainly whether the swap is clean.

Do your gateways need a cloud subscription to work?

No. The device is configured with our own tooling and pushes to the server endpoints you nominate over MQTT or HTTPS. Our published WT470M and WT400M specifications list dual-server logging, and dual-server push is documented for the WT460M. There is no Wiman account in the data path and no per-device licence required to keep a gateway reporting.

Which certifications do your gateways carry?

Our published product data lists CE for the WT460M, WT400M and WT410DM, and FCC for the WT460M; no certification is currently listed for the WT470M. For an Indian tender or a regulated deployment — an MTCTE/TEC or ETA-WPC clause, for instance — tell us the exact clause you have to satisfy and the model you intend to use, and we will confirm in writing which current compliance documents we can produce. We would rather give you a precise answer than a general assurance.

Can you customise firmware or white-label at low volume?

Yes. Custom register maps, site-specific payload schemas, non-standard protocol variants, your branding on the enclosure and your defaults in the firmware are all work we take on at tens or a few hundred units. Tell us the quantity and the deviation from standard and we will quote the engineering separately from the hardware.

How quickly can I get units?

We build in Chennai and hold finished stock, and shipments are domestic — there is no import or customs-clearance step in the timeline. Availability depends on the model and quantity at the time you ask, so send us the model and the count and we will confirm against current stock before you commit to a commissioning date.

Do you support Modbus TCP as well as Modbus RTU?

The WT460M handles Modbus RTU and Modbus TCP; the WT470M, WT400M and WT410DM are RS-485 Modbus RTU. In the PRO series, the WT600M adds Modbus TCP master over a shared LAN — note that it is an Ethernet gateway with no cellular uplink, so it suits a wired plant rather than a 4G site. Our Modbus RTU vs TCP guide explains where the two differ on the wire if you are deciding which side your meters should sit on.

What happens to readings when the 4G link drops?

Every model listed here does store & forward: readings are buffered locally and flushed when connectivity returns, so an outage is back-filled rather than lost — up to the capacity of the on-device buffer. Our store & forward guide shows the buffering, flush order and batch behaviour, and we will size the buffer against your poll rate if you tell us the worst-case outage you need to survive.

How do I check which LTE bands I need for my site?

Use our free cellular bands lookup — it lists the LTE and 5G NR bands each operator deploys, by country, so you can specify the right band variant before ordering. Our SIM data calculator will then size the monthly data plan, including an allowance for TCP/IP, TLS and MQTT keepalive overhead.

Is Wiman affiliated with, or endorsed by, Teltonika Networks?

No. Wiman is an independent Indian manufacturer with no partnership, reseller relationship, affiliation or endorsement from Teltonika Networks, and this page is not approved by them. We use their company and product names only to identify the products that buyers compare ours against. Everything stated here about their products is drawn from their own public documentation as of July 2026 and may change, so check their site for current information. We have not bench-tested their hardware, so we publish no comparative performance figures, and we publish no price comparison. Teltonika and Teltonika Networks are trade marks of their owner.

Where to go next

Tell us the site, the protocol and the quantity — we will tell you honestly whether we fit.Send an enquiry →

Teltonika, RUT and TRB are trademarks of Teltonika Networks. All trademarks are the property of their respective owners. Wiman is not affiliated with, endorsed by or sponsored by Teltonika Networks. Comparisons describe our own products only; verify any third-party product against its current published datasheet before purchase.