Sensor System Technology Co., Ltd. (SENSYS)

Pressure, level and temperature sensors and digital indicators made in Ansan

LISTEDMANUFACTURER

Ansan, Gyeonggi-do, South Korea

About

Sensor System Technology (brand SENSYS) is a Korean sensor maker founded in 1998 and located in Ansan, Gyeonggi-do. It designs and produces pressure transmitters, digital pressure gauges and switches, differential pressure transmitters, submersible level transmitters, temperature transmitters and panel-mount digital indicators.

Its sensors use piezoresistive silicon, ceramic and foil strain-gauge cells, with ranges from a few pascals for clean-room and HVAC use up to 500 MPa for hydraulics. Products are used in semiconductor equipment, construction machinery, automotive, shipbuilding and general industrial machinery.

The company is ISO 9001 certified, holds several domestic patents and CE marks across its range, and offers flameproof (Ex d IIC T6) models verified by the Korea Gas Safety Corporation.

Products

Pressure Transmitters

Industrial pressure transmitters with built-in amplifiers, from laboratory-grade precision units to compact low-cost OEM sensors, shock-resistant strain-gauge types and ceramic/PTFE versions for corrosive media.

Key features

Piezoresistive silicon, ceramic and foil strain-gauge sensing cells
Accuracy from 0.035 %FS (PHP) to 1 %FS
Voltage, current and mV outputs; RS-232 on precision model
Stainless steel, titanium, PTFE and PP/PVC wetted options
Flush-diaphragm sanitary and marine variants
CE marked on most models

Applications

Hydraulic and pneumatic systems
Off-road and construction machinery
Semiconductor wet-process equipment
Chillers, compressors and refrigeration
Food processing and marine systems

-100 kPa – 1000 bar; 0.035–1 %FS; VDC/mA/mV
CE

22 models

Model	Series	Measuring range	Accuracy	Output	Sensing element / wetted parts
PHP	Precision	0–150 MPa	0.035 %FS	VDC, mA analog; RS-232 digital	Stainless steel
PSH	Precision	0–70 MPa	0.15 %FS	VDC, mA	Piezoresistive silicon; SS316L
PSC	Precision (compact)	0–70 MPa	0.25 %FS	VDC, mA	Piezoresistive silicon; stainless steel; IP55 (cable)
PTB	General	-100 kPa – 10 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; SS/Ti, EPDM
PTC	General	-100 kPa – 10 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; SS/Ti, NBR; IP55 (cable)
PSK	General (compact)	20 kPa – 3.5 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; stainless steel
PSB	General (compact)	20 kPa – 3.5 MPa	0.5 %FS	1–5 VDC	Piezoresistive silicon; SS, brass
M5200	Low-cost	0–1000 bar g	0.5 %FS	VDC, mA	Operating -40–125 °C
PTE	Low-cost	0–10 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; SS, Viton
PMS	Pressure-shock resistant	0–500 MPa	0.5 %FS	VDC, mA	Foil strain gauge; stainless steel
PMH	Pressure-shock resistant	0–500 MPa	0.25 %FS	VDC, mA	Foil strain gauge; stainless steel
PMSA	Pressure-shock resistant (mV)	0–500 MPa	0.5 %FS	mVDC	Foil strain gauge; stainless steel
PMHA	Pressure-shock resistant (mV)	0–500 MPa	0.25 %FS	mVDC	Foil strain gauge; stainless steel
PMC	Pressure-shock resistant (compact)	0–50 MPa	0.8 %FS	VDC	Foil strain gauge; stainless steel; IP55 (cable)
PTA	Pressure-shock resistant	-100 kPa – 500 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; SS, Ti
PTD	Pressure-shock resistant	-0.1 – 150 MPa	0.5 %FS	VDC, mA	Piezoresistive silicon; SS, Ti
PCA	Corrosion-resistant / semiconductor	0–1 MPa	1 %FS	4–20 mA	Ceramic cell; PTFE; IP55
PCL	Corrosion-resistant / semiconductor	0–1 MPa	0.5 %FS	VDC, mA	Ceramic (Al2O3); PP or PVC body
PSG	Air / low pressure	-100 – 1000 kPa	0.5 %FS	VDC, mA	Piezoresistive silicon; non-corrosive gases
PSI	Air / low pressure (low-cost)	-100 – 1000 kPa	0.5 %FS	VDC, mA	Piezoresistive silicon; non-corrosive gases
PSH (flush diaphragm)	Special – sanitary	0–3.5 MPa	0.15 %FS	VDC, mA	Piezoresistive silicon; SS316L flush diaphragm
PBM	Special – marine	0–70 MPa	0.15 %FS	mA	Piezoresistive silicon; SS316L

Digital Pressure Gauges & Electronic Pressure Switches

Compact digital pressure gauge/switches with LED displays and switching outputs, a flameproof digital transmitter for hazardous areas, and solid-state pressure switches with no moving parts.

Key features

30×30 mm compact SMA body with 2 open-collector outputs
Analog 1–5, 0–5, 0–10 V or 4–20 mA retransmission
Ex d IIC T6 IP67 flameproof SIG model with LCD
Electronic switches with 1 ms response
Ceramic/PTFE version for corrosive fluids

Applications

Machine-tool and press hydraulics
Compressed-air monitoring
Petrochemical process monitoring
Pump and compressor control

-100 kPa – 500 MPa; LED/LCD; relay/NPN/PNP outputs
CE
UL (SMA)

10 models

Model	Series	Measuring range	Accuracy	Display / output	Notes
SMA(SS)	Digital pressure gauge/switch – remote sensor	0–600 kPa … 3 MPa		4-digit LED; 1–5/0–5/0–10 VDC or 4–20 mA; 2× NPN	30×30 mm; Hex 11 miniature sensor; SS316L
SMA (corrosion resistant)	Digital pressure gauge/switch	0–1 MPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	Ceramic cell; PTFE/Viton/FFKM wetted
SMAA	Digital pressure gauge/switch – air	-100 – 1000 kPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	Non-corrosive gases
SMAV	Digital pressure gauge/switch – compound	-100 kPa – 70 MPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	SS316L wetted
SMAH	Digital pressure gauge/switch – high pressure	-100 kPa – 70 MPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	SS316L wetted; UL listed model family
SIG	Explosion-proof digital pressure transmitter	-0.1 – 150 MPa	0.2 / 0.5 %FS	4½-digit backlit LCD; VDC, mA; opt. 2× relay, RS-485	Ex d IIC T6, IP67
SSG	Digital pressure gauge/switch	-0.1 – 500 MPa	0.5–0.8 %FS	10 mm LED; 1–5 VDC / 4–20 mA; opt. 2 switching outputs	IP65; 18–26 VDC supply
PSS	Electronic pressure switch	0–400 MPa		2 set points; 1 ms response	Foil strain gauge; no moving parts
PSO	Electronic pressure switch	0–50 MPa		1 or 2 set points; 1 ms response	Foil strain gauge; no moving parts
PSL	Electronic pressure switch	0–150 MPa		1 or 2 set points; 1 ms response	Piezoresistive silicon; SS/Ti diaphragm

Portable Digital Pressure & Temperature Gauges

Battery-powered handheld gauges for field calibration, leak and valve testing, and temperature checks, including a reference-class unit with ±0.025 %FS accuracy.

Key features

Die-cast bodies with large backlit displays
Up to 10 selectable pressure units
Peak, min/max, alarm and data-logging functions
RS-232C and analog output on upper models
Auto zero and auto power-off

Applications

Field calibration of pressure instruments
Valve and regulator testing
Leak and burst testing
Plant utility temperature checks

0–500 MPa; ±0.025–1 %FS; battery powered

Model	Series	Measuring range	Accuracy	Display / output	Notes
SBP	Portable digital pressure gauge – reference	0–150 MPa	±0.025 %FS	5-digit display; RS-232C, analog out	10 units; switch test, peak, min/max, alarm
SBU	Portable digital pressure gauge	0–70 MPa	±0.1 %FS	Backlit display; opt. RS-232C, 1–5 VDC	Data logging, peak, alarm
SBH	Portable digital pressure gauge	0–500 MPa	±0.25 %FS	Backlit display	Peak, auto zero, auto power-off
SBS	Portable digital pressure gauge	0–10 MPa	0.5 %FS	Backlit display	10 units; peak, auto zero
TBH	Portable digital thermometer		±0.5 %FS	Backlit display	°C/°F; die-cast housing
TBS	Portable digital thermometer		±1 %FS	Backlit display	°C/°F

Differential Pressure Transmitters, Meters & Switches

Low-range air differential pressure transmitters and panel meters for HVAC and clean rooms, plus wet/wet differential transmitters and gauges for liquids.

Key features

Ranges from 0–50 Pa for clean-room control
2-wire 4–20 mA field transmitters with LCD
48×96, 48×48, 48×24 mm and round Ø89 panel meters
Relay or NPN alarm outputs with adjustable range
SS316L wet/wet versions to 3.5 MPa

Applications

Clean-room and fume-hood pressure control
VAV boxes and airflow measurement
Filter differential monitoring
Tank level and leak test systems

50 Pa – 3.5 MPa diff.; 0.25–1.5 %FS
CE

12 models

Model	Series	Measuring range	Accuracy	Display / output	Notes
SMA(DA)	Digital differential pressure gauge/switch – air	50 Pa … 100 kPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	30×30 mm
DPL	Differential pressure transmitter – HVAC	0–300 Pa … 100 kPa	0.5 %FS	3½-digit LCD; 2-wire 4–20 mA
DPD	Differential pressure transmitter – HVAC	0–300 Pa … 100 kPa	0.5 %FS	3½-digit LCD; 2-wire 4–20 mA	Duct/room mounting
DPU	Differential pressure transmitter – low range	0–50 … 1000 Pa	0.3–1 %FS	4-digit bar-graph LCD; 2-wire 4–20 mA	Pa/mmH2O/mbar; averaging 1–99 s
DPC	Differential pressure transmitter – HVAC	0–300 Pa … 100 kPa	0.5 %FS	2-wire 4–20 mA	No display
DPA	Panel differential pressure meter 48×96	0–50 … 1000 Pa	0.5–1 %FS	4-digit LED; VDC or 4–20 mA	Auto zero
DPB	Panel differential pressure switch 48×48	0–300 Pa … 10 kPa	0.5–1.5 %FS	3½-digit LED; 2× relay or NPN; 1–5 V / 4–20 mA
DPM	Panel differential pressure switch 48×24	0–300 Pa … 10 kPa	0.5–1.5 %FS	3½-digit LED; 2× NPN; 1–5 V / 4–20 mA	e-CON connector
DPR	Round panel differential pressure meter Ø89	0–300 Pa … 100 kPa	0.5–1.5 %FS	3½-digit LED; 2× relay; VDC or 4–20 mA	Optional Ø93 cut-out
SMA(DL)	Digital differential pressure gauge/switch – liquid	5 kPa … 3.5 MPa		±1999 LED; VDC or 4–20 mA; 2× NPN/PNP	SS316L diaphragm
DWS	Wet/wet differential pressure transmitter	0–3.5 MPa diff.	0.25 / 0.5 %FS	VDC, mA	IP65 (DIN connector); stainless wetted
SSD	Digital wet/wet differential pressure gauge	0–3.5 MPa diff.	0.3 / 0.5 %FS	10 mm LED; 1–5 VDC / 4–20 mA; opt. 2× relay	IP65

Submersible Level Transmitters

Fully sealed hydrostatic level transmitters with vented polyurethane cable for tanks, wells and marine use, including a version with combined temperature output and a display version.

Key features

Waterproof to 350 m depth
Diameters 21, 27 and 30 mm
Titanium version for seawater
Combined pressure + PT100 temperature model
IP68 sensor with IP67 indicator housing (SIL)

Applications

Deep wells and groundwater monitoring
Water reservoirs and supply
Ship ballast and tank levels
Geophysical measurement

0–350 m H2O; 0.15–0.25 %FS; 4–20 mA

Model	Series	Measuring range	Accuracy	Output	Sensing element / wetted parts
PLN	Submersible level transmitter Ø21	Up to 350 m water depth	0.15 %FS	4–20 mA, 1–5 VDC	SS316L; vented PU cable
PLA	Submersible level transmitter Ø27	Up to 350 m water depth	0.15 %FS	4–20 mA, 1–5 VDC	SS316L; vented PU cable
SIL	Submersible level transmitter with indicator	0–350 m (35 kgf/cm²)	0.2 %FS	4½-digit LCD; VDC, mA; opt. 2× relay, RS-485	Case IP67, sensor IP68
PLT	Level + temperature transmitter Ø30		Pressure 0.15 %FS; temp 0.5 %FS	4–20 mA	PT100 + silicon cell; SS316L
PLF	Level transmitter – titanium/stainless		0.25 %FS	4–20 mA	Ti or SS316L; for shipbuilding/marine

Temperature Transmitters & Sensors

Digital temperature gauges and transmitters, including a flameproof LCD transmitter, RTD remote transmitters and head-mounted PT100 converters.

Key features

Ex d IIC T6 IP67 flameproof TIG model
LED gauge/switch with relay outputs
2-wire 4–20 mA RTD transmitters
Head-mount PT100 to 4–20 mA module
RTD and thermocouple elements

Applications

Chemical and petrochemical processes
Food and pharmaceutical plants
Hydraulic oil temperature monitoring
Plant utilities

-50 – 600 °C; 0.2–0.8 %FS

Model	Series	Measuring range	Accuracy	Output	Notes
TIG	Explosion-proof digital temperature transmitter	-50 – 600 °C	0.2 %FS	4½-digit LCD; VDC, mA; opt. 2× relay, RS-485	Ex d IIC T6, IP67
TSG	Digital temperature gauge/switch	-50 – 400 °C	0.8 %FS	10 mm LED; 1–5 VDC / 4–20 mA; opt. 2× relay	IP65; 18–26 VDC
TSRT	RTD temperature transmitter	-50 – 400 °C	0.5 %FS	2-wire 4–20 mA	SS316L
TA100	Head-mount temperature transmitter	-50 – 500 °C	0.2 %FS	2-wire 4–20 mA	PT100 input
RTD / Thermocouple	Temperature sensors

Digital Panel Indicators

Panel-mount process and strain-gauge indicators with alarm relays, analog retransmission, serial communication or BCD output, including a 4,000 samples/s high-speed type.

Key features

Strain-gauge (1–3 mV/V) and V/mA input versions
2, 4 and 8-channel alarm outputs
RS-232C, RS-485 and BCD output types
High-speed 4,000 samples/s model for peak capture
Hold, peak-hold and reset functions; DIP-switch filters

Applications

Load cell and pressure display
Test benches and press monitoring
Process panels
Data acquisition interfaces

±19999 count; mV/V, V, mA, TC, RTD inputs

20 models

Model	Series	Input	Display	Outputs	Housing / functions
A1-1000	Process indicator	0–5/1–5/0–10 V, 4–20 mA	4-digit ±9999, 20 mm LED	AL1, AL2, GO relays; opt. analog, RS-485; 24 V sensor supply	96×48 mm; root/square functions
A1-2000	Multi-input process indicator	V, mV, mA, TC, RTD, load cell	4½-digit ±19999, 3-colour LED	AL1, AL2, GO relays; analog; RS-485; 24/10/5 V supply	96×48 mm; peak/hold/reset/zero inputs
SC1100	2-ch alarm indicator	1–3 mV/V (strain gauge)	±19999 LED	Analog 0/1–5/10 V, 4–20 mA; 2 alarms	48×96 mm aluminium; hold/peak/reset
SC2100	2-ch alarm indicator	V or mA	±19999 LED	Analog 0/1–5/10 V, 4–20 mA; 2 alarms	48×96 mm aluminium
SC1300	2-ch alarm indicator – simple	1–3 mV/V	±19999 LED	Flexible relay (min/max)	48×96 mm aluminium
SC2300	2-ch alarm indicator – simple	V or mA	±19999 LED	Flexible relay (min/max)	48×96 mm aluminium
SC1400	4-ch alarm indicator	1–3 mV/V	±19999 LED	4 relays; analog 0/1–5/10 V, 4–20 mA	48×96 mm aluminium
SC2400	4-ch alarm indicator	V or mA	±19999 LED	4 relays; analog 0/1–5/10 V, 4–20 mA	48×96 mm aluminium
SC1800	8-ch alarm indicator	1–3 mV/V	0.000–9999 LED	8-step NPN open collector	48×96 mm aluminium
SC2800	8-ch alarm indicator	V or mA	0.000–9999 LED	8-step NPN open collector	48×96 mm aluminium
SC1500	Simple indicator	1–3 mV/V	±19999 LED		Peak hold, reset
SC2500	Simple indicator	V or mA	±19999 LED		Peak hold, reset
SC110H	High-speed indicator (4,000 samples/s)	1–3 mV/V	±19999 LED	Analog 0/1–5/10 V, 4–20 mA	Filter 100 Hz–4 kHz
SC210H	High-speed indicator (4,000 samples/s)	V or mA	±19999 LED	Analog 0/1–5/10 V, 4–20 mA	Filter 100 Hz–4 kHz
SC110R	RS-232C indicator	1–3 mV/V	±19999 LED	RS-232C; analog	Up to 19,200 baud
SC210R	RS-232C indicator	V or mA	±19999 LED	RS-232C; analog	Up to 19,200 baud
SC110E	RS-485 indicator	1–3 mV/V	±19999 LED	RS-485; analog	Up to 19,200 baud
SC210E	RS-485 indicator	V or mA	±19999 LED	RS-485; analog	Up to 19,200 baud
SC110B	BCD output indicator	1–3 mV/V	±19999 LED	BCD (NPN open collector)	Peak hold, reset
SC210B	BCD output indicator	V or mA	±19999 LED	BCD (NPN open collector)	Peak hold, reset

Company facts

Country: South Korea
Founded: 1998
Business registration: Not provided
Certifications: ISO 9001, CE (multiple models), KGS flameproof verification (SIG, TIG), UL (SMA model)

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Sensor System Technology Co., Ltd. (SENSYS)

About

Products

Pressure Transmitters

Key features

Applications

Digital Pressure Gauges & Electronic Pressure Switches

Key features

Applications

Portable Digital Pressure & Temperature Gauges

Key features

Applications

Differential Pressure Transmitters, Meters & Switches

Key features

Applications

Submersible Level Transmitters

Key features

Applications

Temperature Transmitters & Sensors

Key features

Applications

Digital Panel Indicators

Key features

Applications

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