Industrial touchscreen controller available from 10" to 32" with built-in membrane health analytics, predictive cleaning alerts, fouling detection, and complete process intelligence. Connects to web portal and mobile app via built-in WiFi.
Vontech develops industrial HMI controllers and IoT platforms specifically designed for water treatment plant distributors and manufacturers. The Guardian HMI integrates hardware and software to deliver SCADA-level control: from plant operations to client, technician and service management -- all through a single ecosystem.
10" to 32" industrial touchscreen with interactive P&ID and dark/light theme
Cloud dashboard for fleet monitoring and management
Remote water quality monitoring from any device
IoT connectivity to the cloud for real-time sync
Industrial touchscreen controller with interactive P&ID diagrams, valve control with touch confirmation, alarm system with configurable thresholds, historical sensor graphs, automated task scheduling, user management with security roles, full activity log and dark/light theme.
The Machine Editor lets you design your water treatment machine's complete control sequence. Drag and connect valves, pumps, tanks, sensors, filters, membranes, mixers and filling machinery to create custom process flows for RO, UF, softeners and more.
Each sensor has a modifiable setpoint that defines operation thresholds and triggers automatic actions for water quality control
Create logical nodes between sensors to build complex water treatment sequences with dependencies
Define backwash, CIP cleaning, filling and regeneration sequences with timed steps and sensor conditions
Built-in support for valves, pumps, tanks, sensors, RO membranes, media filters, softener resins and filling machinery

A complete ecosystem of tools designed to maximize the efficiency and reliability of your water treatment processes.
Live readings of TDS, conductivity, pressure, temperature, pH, ORP, resistivity and customizable sensor configurations.
Schedule backwash, regeneration, readings and maintenance on automatic schedules with weekly, monthly or yearly frequency.
Configurable threshold-based alarms with detailed history, push notifications and automatic escalation for water quality deviations.
Open and close with touch confirmation, interactive P&ID process diagram and real-time visual status feedback.
Role-based access control with security classification. Administrator, operator and viewer with granular permissions.
Interactive graphs with 2h, 24h, 7d zoom and custom ranges for deep water quality data analysis and compliance reporting.
Complete record of every action with timestamp, user and description. Full operations traceability for compliance.
Choose between dark theme for control rooms or light theme based on your preference and lighting conditions.
Built-in WiFi for real-time sync between HMI, cloud and mobile devices with secure encrypted protocol.
Cloud-based web portal designed for water treatment plant distributors and manufacturers. Manage clients, machines, maintenance services, technicians and parts from a centralized platform with real-time remote water quality monitoring.
Manage all your clients and machines from a single dashboard with real-time status of your entire water treatment fleet
Monitor sensors, water quality and equipment status in real time. Control water treatment plants remotely without on-site visits
Manage maintenance services, schedule upcoming work, track parts and spares, and maintain complete service history per machine
Assign routes to technicians, track their location in real time, manage workload and optimize field service routes
The Vontech mobile app empowers your end clients with direct access to their water treatment system status, real-time water quality data, technician tracking and direct communication with the manufacturer or distributor.
Clients see their equipment status, TDS, conductivity, pressure, temperature and all sensor readings in real time
Clients can track their assigned technician live and follow the status of their maintenance service in real time
Instant push notifications for water quality deviations, maintenance reminders and system status changes
Clients can request services and communicate directly with the manufacturer or distributor from the app
Available as a web app -- accessible from any browser on iOS and Android devices. No app store download required.



The Guardian HMI is an industrial water treatment controller designed for RO, UF, softeners, media filters and filling machines. It integrates with pumps, tanks, valves and sensors to automate and monitor complete water treatment processes via WiFi and IoT connectivity.
A simple process to start monitoring and automating your water treatment equipment.
We integrate the Guardian HMI controller into your water treatment machine or industrial equipment
Design your water treatment process with the visual editor: valves, sensors, setpoints and sequences
The HMI connects to the Vontech cloud via WiFi for real-time water quality data synchronization
Monitor water quality remotely, configure alarms, schedule maintenance and optimize treatment processes
All Vontech sensors feature RS485 Modbus RTU, IP68 waterproof rating, and instant compatibility with the Guardian HMI platform.
Fill out the form and a Vontech specialist will contact you to design the perfect water treatment control solution for your operation.
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Schedule a personalized Guardian HMI demo and discover how Vontech can transform your water treatment control and monitoring.