The compact Blueline program covers the most important measuring applications in laboratories. Reliable high speed settings over a wide temperature range, new membrane glass with higher mechanical stability, as well as improved gel electrolyte are only a few features ensuring improved functionality. On electrodes with liquid electrolytes the refill opening is sealed tightly with a practical sliding plug. These elecrodes have a platinum diaphragm developed by Schott, which give the electrodes a particularly constant and reproducible measuring characteristic.With Silamid reference systemRange: 0-14pH
BlueLine 11 pH, 12 pH, 14 pH, 15 pH, 17 pH, 19 pH: Precision electrodes with liquid electrolyte with and without built-in temperature sensor for pH measurement in lab applications?
Optimum electrolyte flow without clogging by unique platinum wire junction Different connection possibilities for many pH meters Best results with high performance membrane glass
BlueLine 11, 12, 14, 15, 17, 19 pH electrodes with 3 mol/l KCl liquid electrolyte for demanding laboratory measurement, easy to clean glass shaft and platinum wire junction. These electrodes are also suited for difficult samples. Depending on the different models temeperature compensation is made via a built-inNTC temperature sensor. For these BlueLine series different connecting options are available:
BlueLine 11 pH: S7 pug head BlueLine 12 pH: 1 m fixed cable with DIN plug BlueLine 14 pH: 1 m fixed cable with DIN plug and 4 mm banana plug, NTC 30 kOhm BlueLine 15 pH: 1 m fixed cable with BNC plug and 4 mm banana plug, NTC 30 kOhm?BlueLine 15 pH NTC10: 1 m fixed cable with BNC plug and 4 mm banana plug, NTC 10 kOhm BlueLine 15 pH Ci: 1 m fixed cable with BNC plug and Cinch plug, NTC 30 kOhm BlueLine 17 pH: 1 m fixed cable with BNC plug BlueLine 17 pH-R: 1 m?fixed cable with?Metrohm-plug BlueLine 18 pH: 1 m?fixed cable?with?DIN-plug and 4 mm?banana plug, Pt 1000 BlueLine 19 pH: 1 m?fixed cable?with?BNC-plug and 4 mm?banana plug, Pt 1000 BlueLine 19 pH NN: 1 m?fixed cable?with?BNC-plug?and 2x 4 mm?banana plug, Pt 1000 pH Meter & Electrode Selection Which pH meter/electrode do I need?...
Making sure you have the right electrode and meter for your application can be confusing, not to mention correct maintenance and what to do if you are having issues. You can find links to our support guides below to help you through the process.
If you are after an electrode selector guide for some of our most popular electrodes and what applications they are recommended for you can find that below.
Electrode Selector Guide
?
?
An introduction to pH
pH, put simply is a measure of how acidic or basic a solution is. It is a measure of H+ions present.?
pH can be measured in a number of ways including test strips, indicator solution or with a pH meter and electrode. If you want to read more about the pH and the pros and cons of these methods, you can check out our introduction guide here.?
How to take a pH reading and care for your electrode
pH electrodes require the correct storage and regular calibration.
If you have a pH meter or are looking to purchase and need to find out more about the care and maintenance process then you can read our guide here. We also include a troubleshoot sections with the most reported issues and possible solutions.?
Selecting the right electrode and meter for your application
So you have decided you need to purchase a pH meter with electrode, but with such a wide selection out there, how do you know which is right for you?
You can read our guide on the differences between electrodes and what applications different features are good for. We also have an electrode selection guide for some of our most popular electrodes.?
Related Products
pH Buffers
Electrode Storage Solution
Electrode Cleaning Solution
?
?
If you require any further assistance, or extra information you can request that here and one of our trained technical specialists will be in contact. Please provide as much detail as possible so that we can get back to you with the right information.
Request information WTW to SI Analytics Cross Reference Cross-Reference Tables
Contains older SI Analytics products being replaced by WTW products.
BlueLine Laboratory Electrodes with Glass Shaft
Old Code
Old model
New Code
New model
285129311
BlueLine 31 RX
103648
SenTix? ORP
285095730
BlueLine 15 pH Ci
103813
SenTix? 86
285095740
BlueLine 15 pH NTC10
103814
SenTix? 87
285129114
BlueLine 11 pH
103639
SenTix? 60
285129122
BlueLine 12 pH
103640
SenTix? 61
285129139
BlueLine 13 pH
103650
SenTix? HW
285129440
BlueLine 14 ID
285130275
A 162 2M DIN-ID
285129147
BlueLine 14 pH
103642
SenTix? 81
285129155
BlueLine 15 pH
103643
SenTix? 82
285129163
BlueLine 16 pH
103647
SenTix? Mic
285129171
BlueLine 17 pH
103641
SenTix? 62
285129188
BlueLine 18 pH
103810
SenTix? 83
285129190
BlueLine 19 pH
103811
SenTix? 84
285129490
BlueLine 19 pH NN
103812
SenTix? 85
285129274
BlueLine 27 pH
103646
SenTix? Sur
?
BlueLine Field Electrodes with Plastic Shaft
Old Code
Old model
New Code
New model
1063462
BlueLine 23 pH 2m
103632
SenTix? 21-3
1065895
BlueLine 29 pH
103806
SenTix? 44
285095712
BlueLine 26 Ci
103807
SenTix? 46
285095760
BlueLine 26 pH NTC10
103808
SenTix? 47
285111145
TopLine 24 pH
103816
SenTix? Top 41
285111150
TopLine 24 pH IDS
103744
SenTix? Top 940
285111165
TopLine 26 pH Chinch
103817
SenTix? Top 46
285129212
BlueLine 21 pHT DIN-N
103733
SenTix? Sp-T
285129217
BlueLine 21 pH
103645
SenTix? Sp
285129225
BlueLine 22 pH
103630
SenTix? 20
285129233
BlueLine 23 pH
103631
SenTix? 21
285129241
BlueLine 24 pH
103635
SenTix? 41
285129258
BlueLine 25 pH
103633
SenTix? 22
285129266
BlueLine 26 pH
103637
SenTix? 42
285129282
BlueLine 28 pH
103805
SenTix? 43
285129320
BlueLine 32 Rx
103815
SenTix? Rx
285129321
BlueLine 32 Rx IDS
103792
SenTix? Rx-T 900
285129460
BlueLine 54 pH
103651
SenTix? 51
285129533
BlueLine 24-3 pH
103636
SenTix? 41-3
285129640
BlueLine 56 pH
103652
SenTix? 52
285129660
BlueLine 56 pH NTC10
103809
SenTix? 57
?
ScienceLine
Old Code
Old model
New Code
New model
1054512
N 1052 A
285130275
A 162 2m DIN ID
1061051
Ag CL 65 (Pt Dia)
285102413 + 285215229
AgCl 62?+?TZ 1520
1070028
B 2420 +
1070075
B 3920 +
285100248
H 65
285100215 + 285215229
H 62?+?TZ 1520
285100437
N 42 A
285100042 + 285122456
N 6280?+?Cable L1A
285100445
N 48 A
285101211 + 285122456
L 6880?+?Cable L1A
285100494
N 52 A
285100034 + 285122456
N 62?+?Cable L1A
285101252
L 7780
285101260
A 7780
285101544
N 42 BNC
285100042 + 285122497
N 6280?+?Cable L1BNC
285101569
N 48 BNC
285101211 + 285122497
L 6880?+?Cable L1BNC
285102051
Ag 42 A
285102343 + 285122456
Ag 6280?+?Cable L1A
285102130
Pt 7780 3Ker
285102281
Pt 8280
285102216
Ag 6580
285102343 + 285215229
Ag 6280?+?TZ 1520
285102232
Pt 6180
285102002
Pt 61
285102257
Pt 6580
285102249 + 285215229
Pt 6280?+?TZ 1520
285102302
Pt 42 A
285102249 + 285122456
Pt 6280?+?Cable L1A
285102516
N 6580
285100042 + 285215229
N 6280?+?TZ 1520
285102808
NH 1100
106395
NH 500/2
285103537
Pt 1400
285103512 + 285215229
Pt 1200?+?TZ 1520
285105451
N 52 BNC
285100034 + 285122497
N 62?+?Cable L1BNC
285106037
LF 513 T
285106131
LF 613 T
285106148
LF 413 T-3
301970
TetraCon? 325-3
285106150
LF 213 T
301962
LR 325/001
285106160
LF 213 T-ID
301962
LR 325/001
285106172
LF 413 T
301960
TetraCon? 325
285106250
LF 813 T
285106131
LF 613 T
285130100
L 6880 1m DIN ID
285101211 + 285122456
L 6880?+?Cable L1A
285130110
L 6880 1m BNC ID
285101211 + 285122497
L 6880?+?Cable L1BNC
285130160
A 157 1m DIN ID
285101335
SCPpHT-MIC-AMF-3M-DIN-N
285130170
A 157 1m BNC ID
285101340
SCPpHT-MIC-AMF-3M-BNC-N
285130240
A 161 1m DIN ID
285101320
SCPpHT-A170MF-3M-DIN-N
285130250
A 161 1m BNC ID
285101315
SCPpHT-A170MF-3M-BNC-N
285130280
A 164 1m DIN ID
103731
SenTix? HWD
285130300
LF 313 T-ID
301961
LR 325/01
285130310
LF 413 T-ID
301960
TetraCon? 325
285414351
LF 313 T-NFTC
301961
LR 325/01
285414360
LF 313 T
301961
LR 325/01
?
Analog Portables pH/ORP
Old Code
Old model
New Code
New model
285202370
HandyLab 100/K
2AA310
pH 3310
285204500
HandyLab 100 ROUTINE
2AA310 + 103642
pH 3310?+?SenTix? 81
285204510
HandyLab 100 FIELD
2AA312
pH 3310 Set 2
285204520
HandyLab 100 VERSATILE
2AA310 + 285101290
pH 3310?+?A 7780 NTC30-DIN-N
Analog Portables Conductivity
Old Code
Old model
New Code
New model
285202380
HandyLab 200/K
2CA300
Cond 3310
285204530
HandyLab 200 ROUTINE
2CA301
Cond 3310 Set 1
285204540
HandyLab 200 VERSATILE
2CA301
Cond 3310 Set 1
285204550
HandyLab 200 PUREWATER
2CA300 + 301961
Cond 3310?+?LR 325/01
Analog Benchtop Meters pH/ORP
Old Code
Old model
New Code
New model
285206300
Lab 855
1AA110
inoLab? pH 7110
285206310
Lab 865
1AA310
inoLab? pH 7310
285206700
Lab 855 Set
1AA114
inoLab? pH 7110 Set 4
285206710
Lab 865 Set
1AA314
inoLab? pH 7310 Set 4
285206810
Lab 845 Set/BL 19 pH
285206470 + 103811
Lab 845?+?SenTix? 84
285206820
Lab 845 Set/BL 25 pH
285206470 + 103633
Lab 845?+?SenTix? 22
285206830
Lab 845 Set/BL 29 pH
285206470 + 103806
Lab 845?+?SenTix? 44
Analog Benchtop Meters Dissolved Oxygen
Old Code
Old model
New Code
New model
285206800
Lab 745 Set
1BA301
inoLab? Oxi 7310 Set 1
Analog Benchtop Meters Conductivity
Old Code
Old model
New Code
New model
285206340
Lab 955
1CA100
inoLab? Cond 7110
285206760
Lab 955 Set
1CA101
inoLab? Cond 7110 Set 1
285206840
Lab 945 Set/LF435T
285206480 + 285206420
Lab 945?+?LF435T
?
Digital Multi-Parameter Portables
Old Code
Old model
New Code
New model
285202390
HandyLab 600/K
2FD350
MultiLine? 3510 IDS
285202400
HandyLab 680/K
2FD560
MultiLine? 3620 IDS
285204560
HandyLab 600 ROUTINE
2FD350 + 103780
MultiLine? 3510?+?SenTix? 980
285204570
HandyLab 600 FIELD
2FD351
MultiLine? 3510 Set 1
285204580
HandyLab 600 VERSATILE
2FD350 + 103743
MultiLine? 3510 IDS?+?SenTix? 945
285204630
HandyLab 600 FOOD
2FD350 + 103752
MultiLine? 3510?+?SenTix? Sp 900-T
285204670
HandyLab 680 pH FIELD
2FD560 + 103740
MultiLine? 3620 IDS?+?SenTix? 940
285204680
HandyLab 680 pH VERSATILE
2FD560 + 301710 + 103743
MultiLine? 3620 IDS?+?TetraCon? 925?+?SenTix? 945
285204730
HandyLab 680 pH FOOD
2FD560 +103752
MultiLine? 3620 IDS?+?SenTix? Sp 900-T
285204760
HandyLab 680 COND VERSATILE
2FD560 + 301710
MultiLine? 3620?+?TetraCon? 925
285204770
HandyLab 680 OX VERSATILE
2FD560 + 201300
MultiLine? 3620?+?FDO 925
285204780
HandyLab 680 pH/COND PW
2FD560?+ 301720 + 103753
MultiLine? 3620?+?LR 925/01?+?SenTix? HW-T 900
285204790
HandyLab 680 pH/COND VERSAT
2FD56C
MultiLine? 3620 Set C
285204800
HandyLab 680 pH/OX VERSAT
2FD560 + 201300 +?103743
MultiLine? 3620 IDS?+?FDO 925?+?SenTix? 945
285204810
HandyLab 680 pH/COND/OX VER
2FD56G
MultiLine? 3620 Set G
Digital Multi-Parameter Benchtop Meters
Old Code
Old model
New Code
New model
285206320
Lab 875
1FD350
inoLab? Multi 9310 IDS
285206330
Lab 875P
1FD350P
inoLab? Multi 9310P
285206350
ProLab 2500
1FD570
inoLab? Multi 9630 IDS
285206720
Lab 875 pH Set
1FD352
inoLab? Multi 9310 Set 2
285206730
Lab 875 Cond Set
1FD353
inoLab? Multi 9310 IDS Set 1
285206740
Lab 875P pH Set
1FD350P + 103780
inoLab? Multi 9310P?+?SenTix? 980
285206750
Lab 875P Cond Set
1FD350P + 301710
inoLab? Multi 9310P?+?TetraCon? 925
285206770
ProLab 2500 p-Set
1FD570 + 103780
inoLab? Multi 9630 IDS?+?SenTix? 980
285206780
ProLab 2500 p/C-Set
1FD56C
inoLab? Multi 9620 IDS Set C
285206790
ProLab 2500 p/C/O-Set
1FD57K
inoLab? Multi 9630 IDS Set K
?
IDS Sensors
Old Code
Old model
New Code
New model
285106290
LF 413T 3M FORK IDS
301719 + 903851
TetraCon? 925/LV-P?+?AS/IDS-3
285129210
BlueLine 21 pH IDS
103752
SenTix? Sp-T 900
285129240
BlueLine 24 pH IDS
103740
SenTix? 940
285129243
BlueLine 24-3 pH IDS
103741
SenTix? 940-3
285129270
BlueLine 27 pH IDS
108130 + 103646
ADA S7/IDS and?SenTix? Sur
285129310
BlueLine 31 RX IDS
103791
SenTix? ORP-T 900
285129321
BlueLine 32 Rx IDS
103792
SenTix? Rx-T 900
285129140
BlueLine 14 pH IDS
103780
SenTix? 980
285202410
LF 413 T IDS
301710
TetraCon? 925
285202420
LF 413 T 3M IDS
301711
TetraCon? 925 -3
285202430
LF 313 T IDS
301720
LR 925/01
285202440
FDO 1100 IDS
201300
FDO? 925
?
Buffers and Solutions
Old Code
Old model
New Code
New model
285126540
Conductivity Solutions
300508
KS 5?
285137677
Standard Buffer L 168 4
109000
PL 2
285138008
Standard Buffer L 401 4
109110
PL 4
285138016
Standard Buffer L 687 4
109120
PL 7
285138024
Standard Buffer L 918 4
109130
PL 9
285138032
Technical Buffer L 400 4
108700
TEP 4.01 Trace
285138049
Technical Buffer L 700 4
108702
TEP 7.00 Trace
285138057
Technical Buffer L 100 4
108703
TEP 10.01 Trace
285138295
Cleaning Solution L 510 4
109648
Pep/pH
285138419
Electrolyte Solution L 301 4
109705
KCl-250
285138505
Electrolyte Solution L 300 8
109706
KCl-50
285139156
Technical buffer solutions LC4004K
108800
TPL 4.01 Trace
285139189
Technical buffer solutions LC7004K
108803
TPL 7.00 Trace
285139218
Technical buffer solutions LC1004K
108805
TPL 10.01 Trace
Accessories
Old Code
Old model
New Code
New model
285122940
Z 503
903843
pH/ MCS
285201520
Z 865
109813
STH 9400
285201530
Z 870
250049
P 3002
285202470
Z 389
902780
SM Pro
285202480
Z 530
2F0004
KS MultiLine? 2
285204889
Z 850
900867
NT Multirange
285206360
Z 600
108131
ADA 94pH/IDS DIN
285206370
Z 610
250115
RP 58 HQ
Feefo Reviews Related Blogs How should I clean a pH electrode, or revive a damaged electrode? Traditional glass pH electrodes are very delicate and need regular care to keep them in good working order. If your electrode has been damaged by exposure to incompatible chemicals such as proteins, heavy metals or sulphides, you may be able to clean and revive it using specialized cleaning solutions... pH electrodes need regu...8 years ago Buy Smarter - what questions should you ask when buying a pH meter? When you're looking to buy a pH meter, whether it's to start measuring or to replace an existing meter, the range of brands and specifications available is huge. With so many options it can be difficult to know where to start, but taking a little time to choose carefully could save you a lot of time and money overall by making sure the meter you choose is right for you. [caption id="attac...8 years ago Product Attachments Connection cables - SI Analytics (147.07 kB) BlueLine Electrodes - SI Analytics (244.50 kB) WTW Alternatives for SI Analytics Electrodes (2.25 MB)