Enhance equipment & human safety
Wireless, energy-harvesting sensors remove inspection blind spots by watching continuously. Problems are flagged before they become failures, protecting both assets and the people who work around them.
Brand partner
Yado – Wireless Condition Monitoring Sensors for Switchgear & Cables
Wireless condition monitoring sensors
Thirteen battery-free sensors, three gateways and a local HMI — stocked and supported in Singapore by Controsys.
Zhuhai Yado Sensor Technology Co., Ltd, founded in 2002 in Zhuhai, China, makes wireless, energy-harvesting IoT sensors that monitor the condition of power infrastructure — switchgear, cable joints, transformers and more. It designs and builds its sensors in its own digital factory and supplies original R&D to partners including Schneider Electric.
Controsys supplies Yado sensors with the concentrators, gateways and panel HMI that bring the readings into your Modbus or cloud monitoring system, for utilities, plants and switchgear builders. See the full product range or the Controsys home page for our panel-building services.
Why Yado
Safety & efficiency, redefined
Reduce costs, maximise efficiency
Fewer manual inspections and less maintenance cut operating cost, while avoiding outages, production disruption and expensive repairs or replacements.
Self-powered temperature sensing
Thermal sensors for connections & contacts
Battery-free sensors that clip, screw or bolt onto joints, terminations and breaker contacts.
Micro Thermal Tag
A coin-sized wireless temperature sensor that clips onto critical electrical connection points and powers itself from the current-carrying conductor, with no battery to replace.
- Model ETS-MICRO
- Powered by electromagnetic induction — maintenance-free
- Smaller than a coin, with flexible strap-on mounting
- Heat-tolerant, waterproof, corrosion-resistant and flame-retardant
- ETS-MICRO
Thermal Cap Nut
A self-powered temperature sensor shaped as a cap nut that screws straight onto exposed bolt threads at medium- and high-voltage connections.
- Model ETS-SN
- Screws directly onto exposed bolt threads
- Harvests energy from the electric field, so it works even with no current flowing
- Resists flame, dust, water and corrosion
- ETS-SN
Elbow Thermal Plug
A wireless sensor that sits inside the insulation plug of an elbow connector and tracks the temperature inside the connector in real time.
- Model ETS-MIX
- Fits inside the elbow connector's insulation plug
- Draws power from the electric field — active even at zero current
- Follows the internal hotspot for early fault detection
- ETS-MIX
Thermal Wiretag
A battery-free sensor that binds onto cable joints without invasive work and monitors temperature at several points along the splice.
- Model ETS-CJ
- Non-invasive binding suits retrofit installations
- Measures temperature at 4 points along the cable splice
- Powered by electromagnetic induction — maintenance-free
- ETS-CJ
Tulip Thermal Ring
A battery-free temperature and current sensor designed for continuous monitoring of circuit breaker contacts.
- Model ETS-MH
- Measures temperature at the hottest point of the contacts
- TMR current sensing separates heavy-load heating from real faults
- Thinner than a smartphone; powered by electromagnetic induction
- ETS-MH
Thermal Bolt
A bolt-format sensor that generates its own power from heat and monitors the temperature of the electrical connection it fastens.
- Model ETS-ZL
- Installs as a bolt on the connection point
- Thermoelectric (TEG) heat harvesting — no external supply
- Continuous connection-point temperature monitoring
- ETS-ZL
Apollo Magnetic Thermal Sensor
A contact-free, self-powered temperature sensor that attaches to equipment with a magnetic base or adhesive pad and harvests energy from ambient light.
- Model ETS-Apollo
- Heat-tolerant magnetic base plus 3M adhesive pad
- Operates from ambient light as low as 24 lx
- Military-grade backup battery for up to 8 years
- ETS-Apollo
Wireless Thermal CT
A clamp-on sensor that takes its power from the cable it measures, reading both temperature and current.
- Model ECT-KK
- Measures temperature and current
- Clamps onto the cable in about one second
- Backup battery keeps it running at zero current
- ECT-KK
Beyond temperature
Condition & asset monitoring
Partial discharge, condensation, SF6, bolt preload and analogue-gauge digitising.
PD Thermal Tag
A self-powered sensor that watches both partial discharge and temperature at cable terminations, with diagnosis performed on the sensor itself.
- Model EDS-US
- Combined partial discharge and temperature sensing in one device
- Edge AI identifies the discharge type, with built-in noise filtering and PRPD analysis
- Powered by electromagnetic induction — maintenance-free
- EDS-US
Wireless Condensation Sensor
A wireless humidity and temperature sensor that works out dew point on the device to flag condensation risk inside electrical enclosures.
- Model ETC-S3
- Dew point calculated on the device
- Ultra-low-power design with a military-grade battery
- Mounts with a magnet or 3M adhesive
- ETC-S3
SF6 Density & Moisture Sensor
Turns an existing SF6 gauge reading into digital, real-time monitoring by measuring both SF6 pressure and moisture content.
- Model EPS-M
- Measures SF6 pressure and moisture together
- Retrofits to the test valve through a 3-way valve
- Fewer manual reading errors, early leak detection and real-time alerts
- EPS-M
Smart Gasket
A self-powered sensor for continuous monitoring of bolt preload pressure on critical joints that otherwise need frequent manual checks.
- Model EPS-G
- Measures bolt preload pressure and temperature
- Generates energy from ambient light as low as 24 lx
- Military-grade backup battery for up to 8 years
- EPS-G
Wireless AI Gauge Reader
A camera-based unit that digitises existing mechanical gauges without modifying them, reading the dial with AI on the device and sending the value wirelessly.
- Model EIS-WGR
- Installs without a power shutdown and without affecting gauge operation
- Local display and image archive for dual verification
- Wire-free; military-grade battery rated for 5 years of operation
- EIS-WGR
Collect & transmit
Gateways & receivers
14
Wireless Concentrator
A DIN-rail unit that gathers readings from Yado wireless sensors and either converts them to Modbus RTU or repeats the signal to extend coverage.
- Model ETJ-N7
- Handles 36 to 96 wireless sensors, up to 150 m range
- Modbus RTU output; repeater function
- Compact MCB-sized body, wide-range AC/DC input, Bluetooth set-up via the EASync app
- ETJ-N7
15
Modular Gateway (DCS)
A communication management terminal that collects data from concentrators over RS485 Modbus RTU, or directly from wireless sensors, and presents it as Modbus TCP over Ethernet.
- RS485 Modbus RTU in, Modbus TCP out over Ethernet
- Splice-together DIN-rail architecture
- Optional modules: extra wireless protocols, 4G transmission, local storage, edge computing
- DCS
16
IoT Gateway
A self-powered gateway that collects wireless sensor data and sends it to the cloud, with no wiring needed at the install point.
- Model ETJ-N9
- Multi-source energy harvesting plus a backup battery
- Edge AI processing reduces the load sent to the cloud
- Low-maintenance, flexible placement
- ETJ-N9
On-panel HMI
Local display
17
Panel HMI (4-inch)
A 4-inch industrial smart display that mounts on a switchgear panel and shows live data, analysis and alarms from the wireless sensors.
- Model ETM-HMI (4-inch)
- Built-in YADO TempLive local monitoring system
- Real-time display, analysis and alarm notifications
- Compact Android-based screen for harsh environments
- ETM-HMI
Powering the future with energy harvesting & ultra-low-power technology
Learn how it worksAbout Yado
Condition monitoring built on wireless, energy-harvesting sensors
Yado, based in Zhuhai, China, has made sensors for power infrastructure since 2002. It designs and builds them in its own digital factory, backed by more than 100 patents, and says it is the most recognised brand in China’s power grid.
- 2 million+Sensors applied
- 20+Years of history
- 200+Employees
- 100+Patents
Why buy through Controsys
Stock, engineering and service in one place
Regional stockist
Common lines are held in stock, with offices in Singapore, Malaysia, Thailand and Indonesia.
Panel integration
We build Yado components into complete annunciator, mimic and control panels.
After-sales support
Installations can be modified, extended or upgraded as your requirements change.
Yado — common questions
Do Yado thermal sensors need batteries?
Most Yado temperature sensors power themselves from the electric field, magnetic induction, heat or ambient light, so they need no battery replacement; some models keep a backup battery for periods with no current.
How do Yado sensors connect to a monitoring system?
Sensors report wirelessly to a Yado concentrator, which converts the data to Modbus RTU, and a modular gateway can present it as Modbus TCP over Ethernet; a self-powered IoT gateway sends data to the cloud.
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Yokogawa
- Pressure Transmitters
- Flowmeters
- Temperature Transmitters
Kimden (Kimura Electric)
- Mosaic Mimic Monitoring System
- Annunciator Alarm Monitoring System
- Annunciator Windows
Enquire about Yado
Send model numbers, quantities and your application — we reply with availability, pricing and technical advice.