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About HOYAN

Rooted in Kaohsiung, Taiwan, HOYAN Technologies has worked in industrial automation and sensing technology for over 20 years.

HOYAN production
2008
Founded
20+
Years of experience
B2B
Industrial market
CE
Product marking
Who we are

An industrial technology
partner based in Taiwan

HOYAN Technologies Co., Ltd. is based in Kaohsiung, Taiwan, and is a designer, builder and supplier of industrial-grade control modules, oil condition sensors and integrated monitoring systems.

Circuit design and firmware are developed in house; PCB fabrication is outsourced, and assembly, soldering, testing and packing are all done on our own bench. The own-brand range covers ETH-A2 gateways, TSF control and I/O modules, WIO water-in-oil detectors, HY-VT triaxial vibration sensors, the HY-FT face recognition and infrared temperature system, and the V-IOT vessel monitoring platform — a complete industrial IoT chain from the sensor to the cloud.

In-house development and manufacturing
ETH-A2 gateways, TSF control modules, WIO oil sensors and HY-VT vibration sensors are all own-brand products, with the core technology held in house.
Every unit tested before it ships
Every unit is powered up and functionally tested before it ships. Assembly and testing happen on our own bench, so a problem can be traced to the batch and the step.
Engineering support
Selection advice, installation, commissioning, maintenance and training are all handled by the people who built the product — nothing is passed to a third party.
Import and export
Real export experience, with technical support in English; the product interface itself covers Traditional and Simplified Chinese, English and Japanese.
Company profile

Company and product overview

Full specifications for each product are available on the product pages.

20+
years in the industry
13
in-house products
6
product lines
CE
product marking
7
industries served
4
interface languages
What we do

Three pillars, one value chain

Designing and building our own products, integrating them into systems, and servicing them on site are all handled by the same team.

Own-brand development and manufacturing
Circuit design and firmware are developed in house; PCB fabrication is outsourced, and assembly, soldering, testing and packing come back to our own bench. Thirteen products span sensing, gateways, control and integrated monitoring. Because the core technology is ours, customisation does not wait on a vendor schedule, and a fault can be traced to the batch and the process step.
System integration and solutions
V-IOT vessel monitoring, vibration-based predictive maintenance and online oil monitoring, with years of practical experience at home and abroad. The equipment being integrated is our own, so responsibility sits in one place.
Field service and support
Selection advice, installation, commissioning, maintenance and training are handled by our own people rather than passed on. Because the design and firmware were written here, a problem found on site goes straight back to the source instead of waiting on a vendor schedule.
Product architecture

One data path, sensor to cloud

The data path is field to gateway to system, with no industrial PC in between and no code to write. All three layers are our own products, so the interfaces between them are consistent.

Sensing · the real state of the machine
WIO water-in-oil detectors and HY-VT triaxial vibration sensors, plus existing Modbus instruments, DI/DO points and 4–20 mA analog signals.
Gateway · signals become data
ETH-A2E over wired Ethernet, ETH-A2L over LoRa and ETH-A2N for serial distribution — all three sharing the same I/O expansion modules and web configuration.
Supervision · data becomes decisions
V-IOT vessel monitoring, FluxLive web SCADA, MQTT cloud platforms, predictive maintenance and alarming. An existing SCADA can also read results directly over Modbus TCP.
Six product lines
VibroSense vibration monitoring WIO oil sensing ETH-A2 gateways TSF control and I/O modules HY-FT AI security V-IOT integrated monitoring
Industries served

Where the products are used

Customers range from listed machine-tool makers, a state-owned energy company and a listed steel mill to an international shipping line, alongside many smaller manufacturers. Customers range from listed machine-tool makers, a state-owned energy company and a listed steel mill to an international shipping line, alongside many smaller manufacturers. These sites share the same conditions: equipment that cannot be stopped at will, harsh operating environments, and an existing control system that usually cannot be altered.

Marine
Whole-ship monitoring — acquired on board, visible ashore.
Steel
Online water-content monitoring of rolling mill gear oil.
Wind power
Gearbox vibration and oil monitored together, without climbing the tower.
Power equipment
Live water-activity monitoring of transformer insulating oil.
Factory automation
Predictive maintenance on critical motors and pumps, with ISO 10816 / 20816 zones.
Plant safety
Temperature screening integrated with attendance and access control.
Facilities
Bringing existing equipment online; powering remote sites off-grid.
Core Values

What we commit to

Quality, innovation and service at the core — creating value for industrial customers, year after year.

🏆
Quality first
Every unit is powered up and functionally tested before it ships. Assembly and testing happen on our own bench, so a problem can be traced to the batch and the step.
💡
Continuous innovation
Twenty years of continuous in-house development: the TSF-A2 control module, WIO water-activity measurement, the ETH-A2 rule engine and the HOYAN-CBM criteria set were all written here.
🤝
Customer first
Understanding the application in depth, then providing a tailored solution with full pre-sales and after-sales support.
🔒
Safe and dependable
Reliability matters most in an industrial environment; every product passes strict environmental testing and safety verification.
🌏
Local service
The advantage of a local manufacturer: fast response, immediate technical consultation and on-site support.
🌿
Sustainability
Predictive maintenance extends equipment life and lowers energy and maintenance costs — sustainability that pays for itself.
Development History

Milestones

2008
HOYAN founded. Starting out in industrial automation equipment distribution and marine services, serving shipping companies and manufacturers across Taiwan.
2018
Development brought in house. The shift from distribution to own products, building up development capability in sensing and control modules.
2019
WIO water-in-oil detector enters production. Water activity (aw) measurement gives warning before free water separates, opening the steel, marine and wind power markets.
2020
TSF-A1 universal data collector. One card covering current, voltage, RTD and thermocouple inputs, suited to older plants with mixed signal types.
2022
TSF-A2 MCU logic controller. Logic written with the rule engine and HRL, alongside the A2 series I/O expansion modules are detected automatically on connection.
2024
ETH-A2 / ETH-A2E gateway and the V-IOT vessel monitoring system. ETH-A2E carries a 160-rule engine and web SCADA so control decisions are made on site; V-IOT brings whole-ship monitoring onto an MQTT platform, adopted by shipping customers.
2025
HY-VT vibration sensors and the FluxMind smart factory platform. The HY-VT series computes FFT and the ISO 10816 / 20816 zone verdict in the sensor itself; FluxMind brings OEE, energy management and AI fault diagnosis together on a four-layer IIoT architecture.
2026
ETH-A2N, ETH-VHS-A2N and ETH-A2L. Serial distribution, vibration monitoring and long-range LoRa complete the ETH-A2 gateway series, covering wired, wireless and dedicated-monitoring site conditions.
Standards and quality

Standards we work to

The standards, regulations and protection ratings the products actually follow.

Measurement to international standards
Vibration assessment uses the ISO 10816-3 / ISO 20816 boundary values exactly as published: 12 tables and 24 boundary values, every one verifiable. Our own feature rules are labelled as engineering practice and kept separate from the standard.
Cyber security baseline
Designed in the spirit of IEC 62443-4-2: three-tier RBAC, salted SHA-256 passwords, login lock-out and audit logging, with TLS and mutual TLS for MQTT and encrypted OTA updates.
Product compliance
Products are marked CE / FCC / RoHS. Published figures are design values; the shipping production version governs.
Environmental protection
Protection is chosen per application: IP66 on the WIO probe, all-316 stainless steel with IP68 on HY-VT2000, IP67 on HY-VT3K/5K, with operating ranges as wide as −40 to +85 °C.
Factory calibration
Water-activity and vibration measurement demand consistent sensing elements, so every sensor is rigorously calibrated before shipping — calibration quality decides directly whether a field reading can be trusted.
Data integrity
When the sensing chain overloads, a sticky flag is set and the reading is marked invalid, so clipped data never enters the trend database and cannot distort later interpretation.
Why us

Why HOYAN

Sensing, gateway and platform from one source
A fault on site is handled by one supplier rather than coordinated between several. The interfaces are our own design, so responsibility is clearly bounded.
Adoption without rebuilding what exists
Nothing is replaced and no existing control program is modified. Meters, drives and PLCs go online as they are, which keeps the cost of adoption manageable.
Twenty years on the ground
The company began by distributing industrial automation equipment and moved into developing its own, and is familiar with how a Taiwanese plant floor actually operates.
Four UI languages, ready for export
Traditional Chinese, Simplified Chinese, English and Japanese switch live, so machinery shipped abroad needs no further interface work at handover.
Work with us

Ready to start?

Product enquiries, technical questions and custom requirements can be discussed directly with the engineer responsible for the product.

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