Stratos Pro
2-wire transmitters providing comprehensive features
Stratos Pro offers pioneering solutions for analysis of pH, ORP, conductivity (conductive or inductive) and oxygen using 2-wire technology.
- Intuitive operation with color-coded user guidance
- For digital Memosens and analog sensors
- Extensive diagnostic functions with Memosens sensors
- IP 67/NEMA 4X protection
- Explosion protection: Zone 1 / Class 1 Division 1 (with sensor in Zone 0).
- Digital communication:
- PROFIBUS-PA
- FOUNDATION-Fieldbus
- HART
Outstanding properties A number of outstanding technological properties make the Stratos Pro series the new benchmark for 2-wire analyzers. Colored screen backlighting has been implemented for the first time in this device class, with the lowest possible power consumption. $$$sSLIDEOUT$$$
Wide Range of Functions 2 digital inputs are provided, as well as an analog input plus a second current output for another measured value.
Zone 1 Explosion Protection Stratos Pro is designed for operation in Zone 1 / Class 1 Division 1 hazardous areas (with the sensor in Zone 0). Operation in hazardous areas from –20 °C to +65 °C is possible. The devices are designed for gas and dust explosion protection (G/D) and can naturally also be used outdoors (type 4 enclosure, UV resistant).
Downloads
Catalog Excerpts
Catalog Excerpt (en)
16181 | Stratos Pro A2
Product Description | Specifications | Product Range
PDF (file size: 5.5 MB) Brochures
Brochure (en)
12724 | Stratos - Multiparameter analyzers with Fieldbus technology
PDF (file size: 4.73 MB) 
Brochure (en)
14696 | Stratos Pro
2-wire analyzers for pH/ORP, conductivity or oxygen
PDF (file size: 2.45 MB) 
Brochure (en)
13210 | Memosens - The complete solution for smart sensor applications.
PDF (file size: 4.3 MB) Manuals
Manual (en)
3872 | Stratos Pro A2... CC
Dual Conductivity Measurement
Software version: 2.x
PDF (file size: 5.13 MB) 
Installation Instructions (en)
16778 | MK-OXY045/046…
Modules for Oxygen Measurement for the Stratos Series
PDF (file size: 13.06 MB) 
Manual (en)
3876 | Stratos Pro A2... PH
pH Measurement
PDF (file size: 5.91 MB) 
Manual (en)
3875 | Stratos Pro A2... PH Memosens
pH Measurement with Memosens Sensors
PDF (file size: 5.71 MB) 
Manual (en)
13317 | Stratos Pro A2.. pH
Overview of Software Versions
PDF (file size: 1.09 MB) 
Manual (en)
13498 | A211 PH / A411 PH
Transmitter Specific HART Command Specification
Device Revision: 2
PDF (file size: 0.95 MB) 
Manual (en)
13499 | A211 PH / A411 PH
Transmitter Specific HART Command Specification
Device Revision: 2
PDF (file size: 0.95 MB) 
Manual (en)
13503 | A211 PH / A411 PH
Transmitter Specific HART Command Specification
Device Revision: 3
PDF (file size: 0.87 MB) 
Manual (en)
13508 | Stratos Pro A201 pH
Transmitter Specific HART Command Specification
Device Revision: 4
PDF (file size: 1.02 MB) 
Manual (en)
13888 | Stratos Pro A201 PH
Transmitter Specific HART Command Specification
Device Revision: 6
PDF (file size: 1 MB) 
Quickstart Guide (en)
13943 | Stratos Pro A2.. Oxy
Oxygen Measurement
PDF (file size: 7.69 MB) 
Manual (en)
14537 | Stratos Pro A201 PH
Transmitter Specific HART Command Specification
Device Revision: 7
PDF (file size: 0.86 MB) 
Manual (en)
16504 | Stratos Pro A201 PH
Transmitter Specific HART Command Specification
Device Revision: 08
PDF (file size: 0.86 MB) 
Manual (en)
3874 | Stratos Pro A2... OXY
Oxygen Measurement
PDF (file size: 5.29 MB) 
Manual (en)
3870 | Stratos Pro A2... OXY
Oxygen Measurement with Memosens Sensors
PDF (file size: 5.06 MB) 
Manual (en)
13322 | Stratos Pro A2.. Oxy
Overview of Software Versions
PDF (file size: 1.09 MB) 
Quickstart Guide (en)
13938 | Stratos Pro A2.. COND
Conductivity Measurement with 2-/4-Electrode Sensors
PDF (file size: 9.16 MB) 
Manual (en)
3871 | Stratos Pro A2... COND
Conductivity Measurement with 2-/4-Electrode Sensors
PDF (file size: 5.65 MB) 
Manual (en)
3869 | Stratos Pro A2... MSCOND
Conductivity Measurement With Memosens Sensors
PDF (file size: 5.14 MB) 
Manual (en)
13327 | Stratos Pro A2.. COND
Overview of Software Versions
PDF (file size: 1.06 MB) 
Quickstart Guide (en)
13948 | Stratos Pro A2.. CONDI
Conductivity Measurement with Toroidal Sensors
PDF (file size: 6.93 MB) 
Manual (en)
3873 | Stratos Pro A2... CONDI
Conductivity Measurement with Toroidal Sensors
PDF (file size: 7.2 MB) 
Manual (en)
3868 | Stratos Pro A2... CONDI Memosens
Conductivity Measurement with Toroidal Sensors via Memosens Protocol
PDF (file size: 6.01 MB) 
Manual (en)
13528 | Stratos Pro A201 Cond / A401 Cond
Transmitter Specific HART Command Specification
Device Revision: 2
PDF (file size: 0.83 MB) 
Manual (en)
13332 | Stratos Pro A2.. CONDI
Overview of Software Versions
PDF (file size: 1.06 MB) 
Quickstart Guide (en)
13953 | Stratos Pro A2.. CC / A4.. CC
Dual Conductivity Measurement
PDF (file size: 5.45 MB) 
Manual (en)
13337 | Stratos Pro A2.. CC
Overview of Software Versions
PDF (file size: 1.08 MB) 
Manual (en)
12607 | PROFIBUS DP/PA
Stratos Evo A451N | Stratos Pro A221 (N/X)
PDF (file size: 16.05 MB) 
Manual (en)
13376 | Stratos Pro
A231 (N/X) | Foundation Fieldbus
PDF (file size: 11.98 MB) 
Safety Guide (en)
10316 | Stratos Pro / MS / Evo Series
Safety Instructions / Control Drawings
Installation and Use in Hazardous Locations
PDF (file size: 8.39 MB) 
Manual (en)
12918 | Device Settings for Customer-Specific Buffer Solutions
PDF (file size: 0.21 MB) 
Manual (en)
13556 | Stratos Pro A201 CondI / A401 CondI
Transmitter Specific HART Command Specification
Device Revision: 2
PDF (file size: 0.82 MB) 
Manual (en)
13561 | Stratos Evo A402 CondI / Stratos Pro A201 CondI
Transmitter Specific HART Command Specification
Device Revision 5 (A402CondI) | Device Revision 3 (A201 CondI)
PDF (file size: 0.98 MB) 
Manual (en)
13566 | A211 CC / A411 CC
Transmitter Specific HART Command Specification
Device Revision: 2
PDF (file size: 0.65 MB) 
Manual (en)
13571 | Stratos Evo A402 CC | Stratos Pro A201 CC
Transmitter Specific HART Command Specification
Device Revision 4 (A402 CC) | Device Revision 3 (A201 CC)
PDF (file size: 0.8 MB) 
Manual (en)
13572 | Stratos Evo A402 CC | Stratos Pro A201 CC
Transmitter Specific HART Command Specification
Device Revision 4 (A402 CC) | Device Revision 3 (A201 CC)
PDF (file size: 0.8 MB) 
Manual (en)
13597 | Stratos Evo A402 Oxy / Stratos Pro A201 Oxy
Transmitter Specific HART Command Specification
Device Revision: 3
PDF (file size: 0.98 MB) Control Drawings
Control Drawing (en)
16341 | Stratos Pro Type A20.X... TIIS Zulassung
Zeichnungsnummer 212.002-280
PDF (file size: 0.77 MB) 
Control Drawing (en)
13024 | Stratos Pro Type A20.X... or A21.X... | A20.B... or A21.B...
Zeichnungsnummer 212.002-100, Bl. 1 (Index 6)
PDF (file size: 2.56 MB) 
Control Drawing (en)
13029 | Stratos Pro Type A20.X... or A21.X... | A20.B... or A21.B...
Zeichnungsnummer 212.002-300, Bl. 1 (Index 1, FM)
FM Control drawing
PDF (file size: 2.43 MB) 
Control Drawing (en)
16540 | Stratos Pro Type A22.X... or A23.X…
Zeichnungsnummer 212.002-100, Bl. 7
ATEX, IECEx
PDF (file size: 0.51 MB) 
Control Drawing (en)
16546 | Stratos Pro Type A22.X… ou A23.X…
Zeichnungsnummer 212.002-100, Bl. 9 (INMETRO)
PDF (file size: 0.51 MB) 
Control Drawing (en)
13039 | Stratos Pro Type A20.X…
Zeichnungsnummer 212.002-100, Bl. 3 (Index 1, INMETRO)
PDF (file size: 0.43 MB) 
Control Drawing (en)
13044 | Stratos Pro Type A201X-*-0-T6 | A201B-*-0-T6
Zeichnungsnummer 212.002-100, Bl. 5 (Index 2, ATEX)
PDF (file size: 2.3 MB) 
Control Drawing (en)
13049 | Stratos Pro Type A40.B... or A41.B...
Zeichnungsnummer 212.002-100, Bl. 2 (Index 6, ATEX / IECEx)
PDF (file size: 2.01 MB) 
Control Drawing (en)
13054 | Stratos Pro Type A40.B... or A41.B...
Zeichnungsnummer 212.002-100, Bl. 4 (Index 1, INMETRO / NCC)
PDF (file size: 1.95 MB) 
Control Drawing (en)
13064 | Stratos Pro Type A40.B... or A41.B...
Zeichnungsnummer 212.002-330, Bl. 2 (Index 1, CSA)
PDF (file size: 2.23 MB) 
Control Drawing (en)
13069 | Stratos Pro Type A22.X... or A23.X...
Zeichnungsnummer 212.002-100, Bl. 7 (Index 0, ATEX / IECEx)
PDF (file size: 2.28 MB) 
Control Drawing (en)
13079 | Measuring Module Type MK-PH015B for Stratos Type A4..B*, A2..B*
Zeichnungsnummer 212.002-110, Bl. 1 (Index 0)
PDF (file size: 2.06 MB) 
Control Drawing (en)
13084 | Measuring Module Type MK-PH015X
for Stratos Type A2..X*, Stratos Multi E401X
Zeichnungsnummer 212.002-110, Bl. 1 (Index 6)
PDF (file size: 1.12 MB) 
Control Drawing (en)
13089 | Measuring Module Type MK-COND025X
for Stratos Type A2..X*, Stratos Multi E401X
Zeichnungsnummer 212.002-130, Bl. 1 (Index 5)
PDF (file size: 1.04 MB) 
Control Drawing (en)
13094 | Measuring Module Type MK-COND025B for Stratos Type A4..B*, A2..B*
Zeichnungsnummer 212.002-130, Bl. 2 (Index 5)
PDF (file size: 2.25 MB) 
Control Drawing (en)
13099 | Measuring Module Type MK-CONDI035X
for Stratos Type A2..X*, Stratos Multi E401X
Zeichnungsnummer 212.002-140, Bl. 1 (Index 5)
PDF (file size: 1.05 MB) 
Control Drawing (en)
13104 | Measuring Module Type MK-CONDI035B for Stratos Type A4..B*, A2..B*
Zeichnungsnummer 212.002-140, Bl. 2 (Index 5)
PDF (file size: 2.08 MB) 
Control Drawing (en)
13109 | Measuring Module Type MK-OXY belonging to Stratos Pro Type A2..X... Or A2..B...
Zeichnungsnummer 212.002-120, Bl. 1 (Index 0)
PDF (file size: 0.07 MB) 
Control Drawing (en)
13114 | Measuring Module Type MK-OXY045X
for Stratos Type A2..X*, Stratos Multi E401X
Zeichnungsnummer 212.002-120, Bl. 1 (Index 6)
PDF (file size: 1.1 MB) 
Control Drawing (en)
13119 | Measuring Module Type MK-OXY045B for Stratos Type A4..B*, A2..B*
Zeichnungsnummer 212.002-120, Bl. 2 (Index 6)
PDF (file size: 2.07 MB) Certificates / Approvals
EU Declaration of Conformity (en)
12456 | Stratos Pro PA A221N, Stratos Pro FF A231N
Document No. EU220121F | 2022-01-21
PDF (file size: 0.89 MB) 
EU Declaration of Conformity (en)
12923 | Stratos Pro PA A221X, Stratos Pro FF A231X
Document No. EU210721A | 2022-07-21
PDF (file size: 1.88 MB) 
EU Declaration of Conformity (en)
12933 | Stratos Pro Type A201X…
Document No. EU210721B | 2021-07-21
PDF (file size: 1.97 MB) 
EU Declaration of Conformity (en)
12938 | Stratos Pro Type A40.N-./.
Document No. EU160810B | 2016-08-10
PDF (file size: 1.3 MB) 
EU Declaration of Conformity (en)
12973 | Stratos Pro Types A201X-.-0-T6
Document No. EU171212A | 2017-12-12
PDF (file size: 1.11 MB) 
EU Declaration of Conformity (en)
12983 | Measuring Modules, Types: MK-PH 015N, MK-COND 025N, MK-CONDI 035N, MK-OXY 045N, MK-CC 065N, MK-MS 095N
Document No. EU160824A | 2016-08-24
PDF (file size: 1.62 MB) 
EU Declaration of Conformity (en)
12993 | Measuring Modules, Types: MK-...X
Document No. EU210721C | 2021-07-21
PDF (file size: 1.96 MB) 
EU Declaration of Conformity (en)
12943 | Stratos Pro Type A201B…
Document No. EU220113A | 2022-01-13
PDF (file size: 1.05 MB) 
EU Declaration of Conformity (en)
12948 | Stratos Pro Type A40.B-./.
Document No. EU181108A | 2018-11-08
PDF (file size: 1.84 MB) 
EU Declaration of Conformity (en)
12949 | Stratos Pro Type A40.B-./.
Document No. EU181108A | 2018-11-08
PDF (file size: 1.84 MB) 
Statement of Conformity (en)
4781 | Stratos Pro Type A201B…
Document No. SC91218B | 2021-12-06
Issue No. 6
PDF (file size: 1.46 MB) 
Ex Certificate of Conformity (en)
8579 | INMETRO, NCC
Document No. NCC 11.7463 | Issue No 5 | Validity date 2025-05-11
Stratos Pro Type A2..X-.-., A22*X e A23*X
PDF (file size: 0.74 MB) 
EC-Type-Examination Certificate (en)
11636 | Stratos Pro Type A201X-*-0-T6
Document No. DEKRA 13ATEX0040 | 2013-02-12
Issue No.1
PDF (file size: 2.53 MB) 
EC-Type-Examination Certificate (en)
16710 | Stratos Pro Types A201X…, A211X…, A221X…, A231X… | Stratos Multi Type E401X
Document No. KEMA 08ATEX0100 | 2021-05-26
Issue No. 8
PDF (file size: 4.58 MB) 
IECEx Certificate of Conformity (en)
16704 | Stratos Pro Typex A201X…, A211X…, A201B…, A221X…, A 231X | Stratos Multi Type E401X
Document No. IECEX KEM 08.0020 | 2021-05-26
Issue No. 7
PDF (file size: 0.36 MB) 
IECEx Certificate of Conformity (en)
8760 | Stratos Pro Typen A2..X-.-. | A2..B-.-. | A22*X and A 23*X | A4..B-.-. | Stratos Evo Type A402B
Document No. IECEX KEM 08.0020 | 2017-11-23
Issue No. 6
PDF (file size: 0.16 MB) 
Certificate of Compliance (FM) (en)
8033 | Stratos Pro A2…-, A4…-Geräte
Certificate of Compliance No. 3037411C (Canada); 2010/09/13 Certificate of Compliance No. 3037411C (Canada) | 2010-09-13
PDF (file size: 1.49 MB) 
Certificate of Compliance (FM) (en)
8675 | Stratos Pro A2…-, A4…-Geräte
Certificate of Compliance No. 3037411 (USA) | 2010-09-13
PDF (file size: 1.37 MB) 
Certificate of Conformity (China - Ex NEPSI) (en)
5168 | Stratos Pro A2..B
Cert No. GYJ20.1053X | 2020-06-10
PDF (file size: 0.76 MB) 
Certificate of Conformity (China - Ex NEPSI) (en)
16317 | Stratos Pro A20..X / Multi E401X
Cert No. GYJ20.1052X | 2020-06-10
PDF (file size: 0.74 MB) 
Korean safety certificate (en)
8697 | Stratos Pro A201X
Kosha 2020-KA4BO-0348
PDF (file size: 0.29 MB) 
Korean safety certificate (en)
12622 | Stratos Pro MK-COND
Certificate No 20-KA4B0-0352
PDF (file size: 0.48 MB) 
Korean safety certificate (en)
12627 | Stratos Pro MK-CONDI
Certificate No 20-KA4BO-0351
PDF (file size: 0.48 MB) 
Korean safety certificate (en)
12632 | Stratos Pro MK-OXY
Certificate No 20-KA4BO-0350
PDF (file size: 0.5 MB) 
Korean safety certificate (en)
16251 | Stratos Pro A201X
Kosha 2020-KA4BO-0349
PDF (file size: 1.48 MB) 
Korean safety certificate (en)
16257 | Stratos Pro MK-PH
Certificate No 20-KA4BO-0353
PDF (file size: 0.51 MB) 
FIELDBUS FOUNDATION Device Registration (en)
12653 | Stratos Pro FF A231N / A231X
Fieldbus Foundation Device Registration | 2014-08-25
PDF (file size: 0.06 MB) 
Certificate PROFIBUS Nutzerorganisation (PNO) (en)
12643 | Stratos Pro PA A221(X)
Certificate No. Z01920
PDF (file size: 2.66 MB) 
Quality Inspection Certificate (en)
8560 | Stratos Pro
Test Reports - Nr. 6684 / 08 und 6684.01/08 | 2008-06-16
according to DIN 55 350 - 18 - 4.3.4
PDF (file size: 1.42 MB) 
Certificate / Approval (en)
13431 | Certificate of Membership FieldComm Group
Foundation Fieldbus, HART, FDI
PDF (file size: 0.3 MB) 
Type Approval Certificate for Ex-Equipment (en)
16654 | A201X-MS*****-0
Certificate No. DEK19.0045, Issue No. 0 (Japan)
PDF (file size: 2.25 MB) Software
Software (en)
13461 | DTM (Pactware) for Stratos Pro A201 pH
Device Revision 02
EXE (file size: 9.93 MB) Software (en)
16169 | GSD for Stratos Pro A221 Multi (PA)
Device Revision 01
ZIP (file size: 0 MB) Software (en)
12213 | DTM (Pactware) for Stratos Pro A201 pH
Device Revision 03
ZIP (file size: 16.82 MB) Software (en)
13469 | DTM (Pactware) for Stratos Pro A201 pH
Device Revision 04
ZIP (file size: 16.84 MB) Software (en)
13873 | DTM (Pactware) für Stratos Pro A201 pH
Device Revision 06
ZIP (file size: 16.97 MB) Software (en)
14527 | DTM (Pactware) für Stratos Pro A201 pH
Device Revision 07
ZIP (file size: 16.97 MB) Software (en)
13473 | EDD (PDM) for Stratos Pro A201 pH
Device Revision 02
ZIP (file size: 0.12 MB) Software (en)
13478 | EDD (PDM) for Stratos Pro A201 pH
Device Revision 03
ZIP (file size: 0.14 MB) Software (en)
13483 | EDD (PDM) for Stratos Pro A201 pH
Device Revision 04
ZIP (file size: 0.14 MB) Software (en)
13878 | EDD (PDM) for Stratos Pro A201 pH
Device Revision 06
ZIP (file size: 0.14 MB) Software (en)
14532 | EDD (PDM) for Stratos Pro A201 pH
Device Revision 07
ZIP (file size: 0.14 MB) Software (en)
12203 | EDD (AMS) for Stratos Pro A201 pH
Device Revision 02
ZIP (file size: 0.11 MB) Software (en)
16175 | EDD (AMS) for Stratos Pro A231 Multi (FF)
Device Revision 01
ZIP (file size: 0.21 MB) Software (en)
13488 | EDD (AMS) for Stratos Pro A201 pH
Device Revision 03
ZIP (file size: 0.26 MB) Software (en)
13493 | EDD (AMS) for Stratos Pro A201 pH
Device Revision 04
ZIP (file size: 0.12 MB) Software (en)
13883 | EDD (AMS) for Stratos Pro A201 pH
Device Revision 06
ZIP (file size: 0.12 MB) Software (en)
14522 | EDD (AMS) for Stratos Pro A201 pH
Device Revision 07
ZIP (file size: 0.13 MB) Software (en)
12233 | DTM (Pactware) for Stratos Pro A201 Cond
Device Revision 02
EXE (file size: 0.94 MB) Software (en)
13513 | DTM (Pactware) for Stratos Pro A201 Cond
Device Revision 03
ZIP (file size: 16.9 MB) Software (en)
12215 | EDD (PDM) for Stratos Pro A201 Cond
Device Revision 02
ZIP (file size: 0.12 MB) Software (en)
13518 | EDD (PDM) for Stratos Pro A201 Cond
Device Revision 03
ZIP (file size: 0.15 MB) Software (en)
12231 | EDD (AMS) for Stratos Pro A201 Cond
Device Revision 02
ZIP (file size: 0.11 MB) Software (en)
12248 | DTM (Pactware) for Stratos Pro A201 CondI
Device Revision 02
EXE (file size: 4.76 MB) Software (en)
13538 | DTM (Pactware) für Stratos Pro A201 CondI
Device Revision 03
ZIP (file size: 16.9 MB) Software (en)
12238 | EDD (PDM) für Stratos Pro A201 CondI
Device Revision 02
ZIP (file size: 0.12 MB) Software (en)
12235 | EDD (AMS) for Stratos Pro A201 CondI
Device Revision 02
ZIP (file size: 0.11 MB) Software (en)
13551 | EDD (AMS) for Stratos Pro A201 CondI
Device Revision 03
ZIP (file size: 0.11 MB) Software (en)
12201 | DTM (Pactware) for Stratos Pro A201 Oxy
Device Revision 02
EXE (file size: 0.32 MB) Software (en)
13576 | DTM (Pactware) für Stratos Pro A201 Oxy
Device Revision 03
ZIP (file size: 16.9 MB) Software (en)
12195 | EDD (PDM) für Stratos Pro A201 Oxy
Device Revision 02
ZIP (file size: 0 MB) Software (en)
13581 | EDD (PDM) für Stratos Pro A201 Oxy
Device Revision 03
ZIP (file size: 0.12 MB) Software (en)
13585 | EDD (AMS) für Stratos Pro A201 Oxy
Device Revision 02
ZIP (file size: 0.11 MB) Software (en)
13587 | AMS für Stratos Pro A201 Oxy
Device Revision 03
ZIP (file size: 0.12 MB) Software (en)
13602 | DTM (Pactware) für Stratos Profibus PA A221 Multi
Device Revision 01
ZIP (file size: 17.85 MB) Software (en)
13607 | EDD (PDM) for Stratos Profibus PA A221 Multi
Device Revision 01
ZIP (file size: 0.98 MB) Software (en)
13612 | EDD (AMS) for Stratos Pro FF A231 Multi
Device Revision 01
ZIP (file size: 0.21 MB) Software (en)
13617 | GSD für Stratos Profibus PA A221 Multi
Device Revision 01
ZIP (file size: 0 MB) 
