Products

Six categories, from a single transmitter to a rack-based protection system, with the specifications of each instrument. To get the catalogue for a category, fill in the instruments you need and we will email it to you.

Due to continuous product development, specifications may change without notice. Please confirm with UNICO before ordering.

Vibration monitoring systems

Rack-based machinery protection for critical machines, and the software that trends and diagnoses what it measures.

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API 670 machinery protection system

A rack-mounted system that monitors rotating machines continuously and raises alert and danger alarms before a fault becomes a failure. It is built to API 670 for vibration measurement and machinery protection.

Used on: Turbines, generators, compressors, pumps, fans and gearboxes

4 to 32 vibration or multifunction channels (RTD or 4–20 mA), plus up to 4 phase-reference channels
Inputs from accelerometers, velocity sensors, proximity probes, tachometers and RTDs
Radial vibration, axial displacement, case expansion, speed and reverse-rotation detection
Alert and danger relays with a user-set delay of 1 to 60 seconds
RS-485 Modbus RTU to the HMI, Ethernet to the monitoring software
19-inch rack mounting

Specifications

Inputs
Vibration channels	4 to 32, vibration or multifunction (RTD or 4–20 mA)
Phase reference	Up to 4 channels
Sensor types	IEPE / voltage-mode accelerometer, proximity probe, velocity sensor, tachometer, RTD, 4–20 mA
Input connector	Screw terminal

Signal processing
Frequency response	2 to 10,000 Hz (acceleration, velocity, displacement)
Dynamic range	90 dB
Accuracy	1 % of full scale
Detection mode	RMS, true peak, true peak-to-peak

Outputs and relays
Analog outputs	Four 4–20 mA per card
Logic outputs	8 per card (4 alert, 4 danger), 1 malfunction
Relays	Form C, SPDT, 1 A at 110 V AC, latching or non-latching
Alarm delay	1 to 60 seconds, user defined

Communication
To HMI	3 redundant RS-485 ports, Modbus RTU
To monitoring software	Ethernet, 10/100 Base-T

Physical and environment
Power supply	110 / 220 V AC / DC
Housing	Aluminium alloy
Mounting	19″ rack
Dimensions	445 × 277 × 259 mm
Weight	5.6 kg
Protection	IP 55
Operating temp.	−20 to +60 °C
Humidity	95 % max, non-condensing

ReliMon condition monitoring software

Web-based software that collects live data from the protection system and the wireless sensors, and gives the maintenance team the plots they need to diagnose a machine.

Used on: Plants that trend machine health across many assets

Time waveform, FFT, orbit, phase, Bode and waterfall plots
Trend analysis and harmonic trend monitoring
Alarm thresholds you set, with an alarm history log
Automated reports
Runs on Windows and Linux, with SCADA and PLC integration

Vibration sensors

Sensors that fit to the machine: a loop-powered transmitter for a direct 4–20 mA signal, and proximity probes for shaft vibration.

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UI-420

Loop-Powered Vibration Transmitter

A preconfigured 4–20 mA signal proportional to RMS velocity, powered directly from the DCS or PLC loop — in a sealed IP67 stainless-steel body.

Used on: ID, FD and PA fans, blowers, compressors, CW pumps, motors, gearboxes, conveyors and cooling towers

Loop-powered 4–20 mA, direct to DCS or PLC
Output proportional to RMS velocity (mm/s)
Five ranges, 0–10 to 0–100 mm/s RMS
Frequency response 10 Hz to 1 kHz
IP67 sealed stainless-steel case
Base isolated, case isolation >10⁸ Ω

SpecificationsDatasheet UI-420/DS, 2026, version 1.0

Technical performance
Base resonance	5 kHz (min), mounted
Range	0–10 to 0–100 mm/s RMS (5 ranges)
Freq. response	10 Hz to 1 kHz, ±5 %
Isolation	Base isolated
Measurement range	50 g peak
Transverse sens.	Less than 5 %

Mechanical
Case material	Stainless steel
Sensing element	PZT, compression
Mounting torque	8 Nm
Weight	155 g (nominal)

Electrical
Output current	4–20 mA DC, ∝ RMS velocity
Supply voltage	15–30 V DC
Settling time	2 seconds
Loop resistance	600 Ω max at 24 V
Case isolation	> 10⁸ Ω at 500 V

Environmental
Operating temp.	−25 to +90 °C
Sealing	IP67
Maximum shock	5000 g
Emissions	EN 61000-6-4:2001
Immunity	EN 61000-6-2:1999

Proximity probes

Non-contact displacement sensors for shaft vibration on critical rotating machinery. They are used to monitor bearing clearance, rotor dynamics and axial position.

Used on: Turbines, generators and large compressors

Non-contact measurement of the shaft itself
Suited to high-speed rotating equipment
Supplied as a system: probe, extension cable, driver and mounting hardware
Works with standard monitoring systems

Wireless IoT sensors

Wireless vibration and temperature monitoring for machines where running cable is not practical.

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Wixson SyncLeap wireless vibration sensor

By Wixson, Germany

A wireless sensor that measures vibration on three axes together with temperature. Several sensors can acquire at the same moment, synchronised to a tacho signal, which supports analysis on machines that change speed.

Used on: Wind turbines, motors, pumps, fans and gearboxes

Three-axis acceleration and velocity, plus temperature
Selectable range of ±2, ±4, ±8 or ±16 g
Sampling rate from 500 to 12,000 Hz
Wi-Fi, with Modbus TCP, HTTP and FTP data transfer
24 V DC supply, with an optional battery
Stud, magnet or adhesive pad mounting

Specifications

Measurement
Axes	3: acceleration, velocity, gravity
Temperature	Measured with vibration
Range	±2 g / ±4 g / ±8 g / ±16 g
Sampling rate	500 to 12,000 Hz
Samples per channel	500 to 72,000
Low-pass filter	50 to 1,000 Hz
High-pass filter	0.1 to 1 Hz

Power, connectivity and mounting
Power supply	24 V DC, optional battery
Connectivity	Wi-Fi access point / client, Modbus TCP, HTTP, FTP
Synchronisation	Simultaneous sensor acquisition with synchronised tacho; external pulse input
Mounting	Stud, magnet or adhesive mounting pad

Portable instruments

Hand-held instruments for walk-round checks and on-site diagnosis.

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Portable vibration pen

A pocket-size vibration meter for quick overall readings on routine rounds. Hold it to the bearing housing, read the level, and decide whether the machine needs a closer look.

Used on: Motors, pumps, fans and gearboxes

Quick overall vibration checks
Pocket size for daily rounds
Specifications on request

Vibration analyzers

Portable analyzers for finding the cause of vibration on site, using spectrum (FFT) and time-waveform analysis.

Used on: Maintenance and reliability teams

Spectrum (FFT) and time-waveform analysis
Used to find unbalance, misalignment, looseness and bearing faults
Specifications on request

Speed monitoring

RPM indication with alarm relays, from a proximity sensor or a magnetic pickup.

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UI-500

Speed (RPM) Indicator Controller

Proximity or magnetic-pickup pulse input, 4-digit LED display, up to two relays, RS485 Modbus and isolated retransmission — in a 96 × 48 mm panel instrument.

Used on: Generators, turbines, and online speed monitoring in automotive, sugar and pharma plants

PNP, NPN and magnetic pickup sensor inputs
Large 0.54″ 4-digit red LED display
Programmable range and decimal point
Up to 2 relays: LO-LO, LO, HI, HI-HI alarms
Optional RS485 Modbus RTU/ASCII interface
Optional isolated 4–20 mA / 0–10 V output

SpecificationsDatasheet UI-500/DS, 2026, version 1.0

Inputs
No. of inputs	One
Sensor types	PNP / NPN proximity sensor, magnetic pickup
Range	0–9999 RPM (PNP / NPN)
Decimal point	Programmable
Accuracy	0.25 % of FS ±1 count

Display
Display type	0.54″ 7-segment red LED
No. of digits	4
Relay status	3 mm red LED
Comm. status	3 mm red LED

Alarms (optional)
No. of relays	1 / 2
Contact type	NO-C-NC
Contact rating	5 A / 230 V AC, resistive
Alarm selection	LO-LO, LO, HI, HI-HI
Relay mode	Each relay LO or HI settable
Hysteresis	Adjustable throughout range

Environment & power
Operating temp.	0 to +70 °C
Storage temp.	−20 to +85 °C
Humidity	0–95 % RH
Supply	110 / 230 V AC ±10 %, 50/60 Hz

Communication (optional)
Port	RS485
Protocol	Modbus RTU / ASCII
Baud rate	1200–19200 bps, programmable
Slave ID	1–255, programmable
Min. polling	250 ms
Process values	Read only
Setpoints	Read & write from host
Alarm status	Read & write
Relay status	Read only

Retransmission (optional)
Current output	4–20 mA, isolated
Load	< 600 Ω
or Voltage output	0–10 V DC, isolated
Load	> 10 kΩ

Enclosure
Material	ABS plastic
Bezel	96 × 48 mm
Depth	65 mm (1 relay), 110 mm (2 relays)
Panel cutout	92 (+0.5) × 45 (+0.5) mm
Cutout spacing	≥ 110 mm horizontal, ≥ 55 mm vertical, centre to centre
Mounting	Flush panel mount

UI-600

DIN-Rail RPM Indicator Controller

Proximity or magnetic-pickup pulse input, 4-digit LED display, up to two relays, RS485 Modbus and isolated retransmission — in a 55 mm wide DIN-rail housing.

Used on: In-panel speed indication with retransmission to a remote display

Microcontroller-based DIN-rail controller
PNP, NPN and magnetic pickup sensor inputs
0.4″ 4-digit red LED display
Up to 2 relays: LO-LO, LO, HI, HI-HI alarms
Optional RS485 Modbus RTU/ASCII interface
Optional isolated 4–20 mA / 0–10 V output

SpecificationsDatasheet UI-600/DS, 2026, version 1.0

Inputs
No. of inputs	One
Sensor types	PNP / NPN proximity sensor, magnetic pickup
Range	Programmable
Decimal point	Programmable
Accuracy	0.25 % of FS ±1 count

Display
Display type	0.4″ 7-segment red LED
No. of digits	4
Relay status	3 mm red LED
Comm. status	3 mm red LED

Alarms (optional)
No. of relays	1 / 2
Contact type	NO-C-NC
Contact rating	5 A / 230 V AC, resistive
Alarm selection	LO-LO, LO, HI, HI-HI
Relay mode	Each relay LO or HI settable
Hysteresis	Adjustable throughout range

Environment & power
Operating temp.	0 to +70 °C
Storage temp.	−20 to +85 °C
Humidity	0–95 % RH
Supply	110 / 230 V AC ±10 %, 50/60 Hz

Communication (optional)
Port	RS485
Protocol	Modbus RTU / ASCII
Baud rate	1200–19200 bps, programmable
Slave ID	1–255, programmable
Min. polling	250 ms
Process values	Read only
Setpoints	Read & write from host
Alarm status	Read & write
Relay status	Read only

Retransmission (optional)
Current output	4–20 mA, isolated
Load	< 600 Ω
or Voltage output	0–10 V DC, isolated
Load	> 10 kΩ

Enclosure
Material	ABS plastic
Dimensions	55 (W) × 70 (H) × 110 (D) mm
Mounting	DIN rail

Process instruments

Panel and DIN-rail instruments that indicate, isolate and record process signals.

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UI-200

Process Indicator Controller

One universal input, a large 4-digit LED display, up to two relays, RS485 Modbus and isolated retransmission — in a compact 96 × 48 mm panel instrument.

Used on: Process plants, pharma rooms, testing and calibration labs, cold storage and dairies

Universal input: RTD, thermocouple, mA, V, mV
Large 0.8″ 4-digit red LED display
Programmable set point and hysteresis
Up to 2 relays: LO-LO, LO, HI, HI-HI alarms
Optional RS485 Modbus RTU/ASCII interface
Optional isolated 4–20 mA / 0–10 V output

SpecificationsDatasheet UI-200/DS, 2026, version 1.0

Inputs
No. of inputs	One
RTD	Pt100
Thermocouple	J / K / R / S / T / B
Current	0/4–20 mA
Voltage	0/2–10 V DC, 0/1–5 V DC, 0–200 mV DC
Range	Programmable
Decimal point	Programmable
Accuracy	0.25 % of FS ±1 count

Display
Display type	0.8″ 7-segment red LED
No. of digits	4
Relay status	3 mm red LED
Comm. status	3 mm red LED

Retransmission (optional)
Current output	4–20 mA, isolated
Load	< 600 Ω
or Voltage output	0–10 V DC, isolated
Load	> 10 kΩ

Environment & power
Operating temp.	0 to +70 °C
Storage temp.	−20 to +85 °C
Humidity	0–95 % RH
Supply	110 / 230 V AC ±10 %, 50/60 Hz

Alarms (optional)
No. of relays	1 / 2
Contact type	NO-C-NC
Contact rating	5 A / 230 V AC, resistive
Alarm selection	LO-LO, LO, HI, HI-HI
Relay mode	Each relay LO or HI settable
Hysteresis	Adjustable throughout range

Communication (optional)
Port	RS485
Protocol	Modbus RTU / ASCII
Baud rate	1200–19200 bps, programmable
Slave ID	1–255, programmable
Min. polling	250 ms
Process values	Read only
Setpoints	Read & write from host
Alarm status	Read & write
Relay status	Read only

Enclosure
Material	ABS plastic
Bezel	96 × 48 mm
Depth	65 mm (1 relay), 110 mm (2 relays)
Panel cutout	92 × 44 mm
Mounting	Flush panel mount

UI-300

Signal Isolator / Converter

Galvanically isolated single or dual output for current and voltage signals, with three-port isolation — in a compact 22 mm DIN-rail module.

Used on: Isolated field signals for PLC and DCS inputs, data loggers and control valves

Compact 22 mm wide DIN-rail module
Current, voltage and shunt (mV) inputs
Three-port isolation: input, output, supply
Converts voltage to current and vice versa
Single or dual output options
DC or AC supply to suit the requirement

SpecificationsDatasheet UI-300/DS, 2026, version 1.0

Input
No. of inputs	One
Input type	Predefined
Voltage	0–10 V DC / 0–5 V DC
Current	4–20 mA / 0–20 mA
Shunt input	0–100 mV

Output
No. of outputs	One / Two
Current	0–20 mA DC, 4–20 mA DC
Voltage	0–5 V, 0–10 V DC

Input / output load
Current input	62 Ω input impedance
Voltage input	10 kΩ/V input impedance
Current output	< 600 Ω load
Voltage output	> 1 kΩ/V load

Accuracy
Accuracy	0.25 % of full span

Isolation
Isolated ports	Input, output and power supply
Test voltage	1000 V AC RMS for 1 minute
Continuous	250 V AC RMS

Power supply
Supply voltage	16–36 V DC, or 85–265 V AC, 50 Hz
Power indication	3 mm red LED

Enclosure & connections
Material	ABS plastic
Dimensions	22 (W) × 75 (H) × 110 (D) mm
Mounting	Snap-on, 35 mm DIN rail
Calibration	Front side
Wire size	< 2.5 mm², 14 AWG, single / multistrand

Environment
Operating temp.	0 to +60 °C
Storage temp.	−20 to +85 °C
Humidity	0–95 % RH

UI-100

8 / 16-Channel Touchscreen Data Logger

Universal inputs, 3.5″ colour TFT, USB pen-drive logging in CSV and Modbus RS485 — in a compact 96 × 96 mm panel instrument.

Used on: Bearing, winding and transformer temperatures, furnace and cooling-water monitoring, 4–20 mA field signals

8/16 universal inputs: TC J/K, Pt100, 0–10 V, 4–20 mA
3.5″ TFT touchscreen, many channels at a glance
USB pen-drive logging in CSV, opens in Excel
Built-in real-time clock for time-stamped data
LO-LO/LO/HI/HI-HI alarms, up to 4 relays
RS485 Modbus RTU/ASCII to SCADA and gateways

SpecificationsDatasheet UI-100/DS, 2026, version 1.0

Inputs
No. of inputs	8 / 16
Input types	Thermocouple J / K, RTD Pt100, 0–10 V DC, 4–20 mA
Range	Programmable
Decimal point	Programmable
Accuracy	0.25 % of FS ±1 count

Display & data logging
Display	3.5″ TFT with touchscreen
Storage	USB pen drive via front host port
File format	CSV — new file each time a drive is connected
Log interval	1–99 minutes, settable
Clock	Built-in RTC

Alarms (optional)
No. of relays	2 / 4
Contact type	NO-C-NC
Contact rating	5 A / 230 V AC, resistive
Alarm selection	LO-LO, LO, HI, HI-HI
Relay mode	Each relay LO or HI settable
Hysteresis	Adjustable throughout range

Environment & power
Operating temp.	0 to +70 °C
Storage temp.	−20 to +85 °C
Humidity	0–95 % RH
Supply	110 / 230 V AC ±10 %, 50/60 Hz

Communication (optional)
Port	RS485 (RS232 on request)
Protocol	Modbus RTU / ASCII
Baud rate	1200–19200 bps, programmable
Slave ID	1–255, programmable
Min. polling	250 ms
Process values	Read only
Setpoints	Read & write from host
Alarm status	Read & write
Relay status	Read only

Retransmission (optional)
Current output	4–20 mA for selected channel
Load	< 330 Ω
or Voltage output	0–10 V DC
Load	> 10 kΩ

Enclosure
Material	MS fabricated, powder coated
Bezel	96 × 96 mm
Depth	150 mm
Panel cutout	92 × 92 mm
Mounting	Flush panel mount