Modulink is self-hosted wireless SCADA — deployed in days, running entirely on your site.

Sensors and valves to a control room you own. No cloud dependency. No carrier fees. No integrator quote.

In production at Falcon Water Technologies since 2025.

Architecture — three layers

01 — Field

Terminals

4-20 mA inputs · valve / motor drive · Wi-Fi (Indi) · LoRaWAN (Agri)

02 — On-site

Base Station

dashboards · alerting · historian · RBAC + audit log · MQTT / REST / Modbus TCP egress

03 — Domain

Skills

vertical application plugins · CIP monitoring · irrigation

Everything runs on your site. Nothing phones home.

Terminals

Field I/O. Read sensors, drive valves and motors. Wi-Fi (Indi) or LoRaWAN (Agri).

Base Station

On-site ARM64 server. Runs the whole stack — dashboards, alerting, historian, RBAC, audit log.

Skills

Paid vertical plugins. The domain logic — CIP monitoring, irrigation intelligence — lives here.

Hardware

Terminal Indi

Industrial · Wi-Fi / LAN

$500

Inputs	2× 4-20 mA
Actuation	H-bridge — valve / speed / relay
Power	9-36 V DC
Network	On-site Wi-Fi / LAN · no SIM · no cloud
Commissioning	Captive portal — connects like a printer
Compute	On-device container runtime

Shipped · in production

Terminal Agri

Agricultural · LoRaWAN (US915)

$500

Sensing	3× soil-tension (Irrometer Watermark)
	1× soil temperature
Actuation	1× latching-valve drive
Range	5 km open air / 1 km indoor
Battery	~5 yr (4× C)
Network	LoRaWAN US915 · no carrier fee

First production run shipping now

Base Station

On-site ARM64 server

$1,000

Runs	Dashboards · alerting · historian
	User accounts (RBAC) · audit log
Egress	MQTT · REST API · Prometheus
Integration	Modbus TCP at the Base Station
Updates	Live via WebSocket
Hosting	Self-hosted · no telemetry, no phone-home

One per site · air-gap capable

Security: AES-128 LoRa link encryption · TLS web UI · JWT / RBAC / audit log · self-hosted, air-gap capable. Right radio for the job — LoRa for long-range low-power fields, Wi-Fi / LAN for instrumented plants.

In production

Falcon Water Technologies · Conroe, TX

RO membrane-cleaning services company. Modulink monitors their cleaning skids in production since 2025.
Relationship expanded through Phase 3.
Modulink hardware is designed into Falcon's product line (OEM).
Read-only ERP integration in production.

Pricing

Terminal — Indi or Agri	$500	One-time, per unit
Base Station	$1,000	One-time, per site
Skills	From $20 / Terminal / mo	Billed annually · e.g. CIP Monitoring
Services	$200 / hr	Installation · commissioning · integration

10 Terminals + 1 Base Station = $6,000 hardware + $2,400/yr for one Skill. Core platform ships free with hardware; if a Skill license lapses it goes read-only, never off.