pH ○ 　 　 　 　 ○ ○ ○ ○ ○ ○ ○ORP 　 　 　 　 　 　 ○ ○ ○ ○ 　 ○

Conductivity 　 ○ 　 ○ 　 　 　 　 ○ 　 ○ ○ISE 　 　 ○ 　 　 　 　 ○ 　 　 　 ○DO　(O2) 　 　 　 　 ○ 　 　 　 　 ○ ○ ○Resistivity 　 　 　 ○ 　 　 　 　 　 　 　 　

Salinity 　 　 　 ○ 　 　 　 　 　 　 ○ ○

Temperature 　 　 　 ○ ○ ○ ○ ○ ○ ○ ○ ○

Turbidity 　 　 　 　 　 　 　 　 　 　 ○ ○Depth 　 　 　 　 　 　 　 　 　 　 　 ○TDS 　 　 　 　 　 　 　 　 　 　 　 ○SSG 　 　 　 　 　 　 　 　 　 　 　 ○

HORIBA Portable Meter Line-upHORIBA Portable Meter Line-up

pH 　 　 ○ ○ ○ ○ ○ ○

mV 　 　 ○ ○ ○ ○ ○ ○

Conductivity ○ ○ 　 　 　 ○ ○ ○

Resistivity ○ ○ 　 　 　 　 ○ ○

Salinity ○ ○ 　 　 　 　 ○ ○

ISE 　 　 　 ○ 　 　 ○

Temperature ○ ○ ○ ○ ○ ○ ○ ○

Navi function 　 ○ 　 ○ ○ 　 ○ ○

HORIBA Benchtop Meter Line-upHORIBA Benchtop Meter Line-up

HORIBA Pocket MetersHORIBA Pocket Meters

TWIN Series (pH, Conductivity)Pocket-size　HORIBA　flat　sensor　meter.TWIN　pH　meter　is　waterproof,　suitable　for　lab　and　field　use.Replaceable　sensor.

pH Conductivity

Cardy Series (Salt, NO3-, K+, Na+)

HORIBA　flat　sensor　technology　is　available　in　pocket-size.World’s　only　pocket-size　Ion　meter　for　lab,　agriculture,　food,　environmental　study,　etc.Sensor　replaceable.

Ion

HORIBA Portable MetersHORIBA Portable Meters

OM series (OM-51-2/-10/-lab)Portable　single　parameter　meter　to　measure　Dissolved Oxygen.No　optional　unit　necessary　for　RS-232C,　AC　or　printer　connection.Compact　design,　larger　LCD　with　IP67　rated　waterproof　realizes　easy　use　in　the　fieldData　storage　up　to　300　sets　with　time　stamp.　

O2 TemperatureDO

ES-50 series (ES-51)Portable　single　parameter　meter　to　measure　Conductivity.　No　optional　unit　necessary　for　RS-232C,　AC　or　printer　connection.　Compact　design,　larger　LCD　with　IP67　rated　waterproof　realizes　easy　use　in　the　field　Data　storage　up　to　300　sets　with　time　stamp.

Conductivity TemperatureResistivity Salinity

D-50 series (D-51,52,53,54,55)Portable　Multi-Parameter　meter　to　simultaneously　measure　pH　and　ORP/Ion/Conductivity/DO.No　optional　unit　necessary　for　RS-232C,　AC　or　printer　connection.Compact　design,　larger　LCD　with　IP67　rated　waterproof　realizes　easy　use　in　the　fieldData　storage　up　to　300　sets　with　time　stamp.

pH ORP Ion Conductivity DO Temperature

U-20 series (U-22, W-22/23)Portable　Multi-Parameter　meter　to　simultaneously　measure　up　to　13　water　quality　parameters.Cable　length　up　to　100　m　with　waterproof　rating　of　IP67One-touch　calibration　makes　work　easyUp　to　one　month　monitoringHeavy-duty　probe　fits　into　2-inch　well.　(flowcell　option　available)Expandability　to　printer,　RS-232　and　GPS　unit

pH ORP Ion(select　3　from　6　options)Conductivity DO Temperature

Salinity Turbidity TDSSeawaterSpecificGravity

Depth

Benchtop MetersBenchtop Meters

DS-50 series (DS-51, DS-52)DS-50 series (DS-51, DS-52)Benchtop　single　parameter　meter　to　measure　ConductivityRS-232C　output　standardBattery　operation　possible　for　portability.D-52　with　color　display　and　navigation　features

Conductivity TemperatureResistivity Salinity

F-50 series (F-51BW, 52, 53, 54, 54BW, 55)　Extended　GLP/GMP　compliance　with　World’s　First meter　to　comply　21CFR　Part11　requirements.　World’s　First　benchtop　meter　with　color　LCD　display　World’s　First　meter　with　Compact　Flash　interface.User　friendly　navigation　features　full　of　HORIBA’s　50　years　experience　Meter　checker　available　to　verify　meter　performance　RS-232C　output　standard　for　all　models.　Battery　operation　possible　for　portability.

ConductivityTemperature

Resistivity Salinity

pH ORP Ion

HORIBA Sensor TechnologyHORIBA Sensor Technology

New ToupH Series Electrode

1995　 HORIBA　Introduced　ToupH　9610-10D　electrode

2003 HORIBA　Introduces　ToupH　family　with…

Ag+ Trap TechnologyAg+ Trap Technology　　　　　　　　　　No Ag+ spill, long lastingNo Ag+ spill, long lasting

ToupHer DesignToupHer Design　　　　　　　　　　Shorter and widerShorter and wider

　　　　 Ion exchange materialPin hole to

Teflon Coating

Former 　 New

Ag/AgCl Electrode

KCl InternalSolution

Ag+ Trap TechnologyNo Ag+ spill, long lastingNo Ag+ spill, long lasting

Ag+ within the internal solutionsaturates and clogs the liquid junction

Slow ResponseSlow ResponseAg+ Contaminates sampleAg+ Contaminates sample

Ion exchange material traps Ag+ and prevents Ag+ from spilling into the

internal solution

Maintained Fast Response Maintained Fast Response No Ag+ ContaminationNo Ag+ Contamination

Liquid Junction

Pin hole toTeflon Coating

Ag/AgCl Electrode

KCl InternalSolution

Liquid Junction

Ag+ Trap Technology3 months monitoring in Protein SampleProtein Sample

Conventional New

Initial 3　months Initial 3　months

Repeatability pH4 0.02 0.01 0.01 0

pH7 0.03 0.03 0.02 0

pH9 0.02 0.11 0.01 0.04

Sensitivity (%) pH4　to　pH9 99 86 99 98

Tap Water T90 14 327 11 32

Liquid Junction Color White Black White White

-10

-5

0

5

10

0 300 600 900 1200 1500 1800

time(s)

mV

Conventional

New

Ag+ Trap Technology3 months monitoring in Tap WaterTap Water

The response is 40 times faster

Conventional

ToupHer DesignShorter and Wider

New

15mm 11mm

φ6mm φ8mmStrength increased by 4.4 times more than former ToupH electrode. Doesn’t break from 1m height.Now stronger against impact from all sides Requires less sample volumeAvailable as ToupH Family: General purpose, Sleeve and Micro pH electrodesGeneral purpose, Sleeve and Micro pH electrodes

Electrode ComparisonHORIBA vs. Accumet (13-620-285)

HORIBA Accumet

ResponseResponseDue　to　no　solution　made　for　Ag+　spill,　the　response　time　will　become　slow　in　a　few　months.

HORIBA

Internal　solution Reference Ion　trap

KCL Ag/AgCl Yes

ToupH　Design

G　pole　and　R　pole　are　on　the　same　height

Fisher

Internal　solution Reference Ion　trap

KCL Ag/AgCl No

No　specific　design　for　durability

G　pole　and　R　pole　are　on　a　different　height

StrengthStrengthNot　a　durable　design,　breaks　from　10cm　height.

Temperature accuracy for pH measurementTemperature accuracy for pH measurementTemperature　detected　at　G　pole　and　the　actual　temperature　at　R　pole　may　differ　→unreliable　pH　value

Electrode ComparisonHORIBA vs. Mettler

HORIBA MettlerHORIBA

Internal　solution Reference Ion　trap

KCL Ag/AgCl Yes

ToupH　Design

Humidity　secured　with　the　sealed　cap

Mettler

Internal　solution Reference Ion　trap

KCL Ag/AgCl Yes

Durable　Design

Soaked　in　KCl　filled　cap

*Stabilization:　Within　0.01pH　drift　in　1　minute

5

5.5

6

6.5

7

7.5

8

0 300 600 900time(s)

pH

METTLER410WTW SenTix61HOR9611

HORIBAStabilizes　in　3　minutes

METTLERStabilizes　in9　minutes

ResponseResponseDue　to　the　storage　in　KCl　solution,　response　against　tap　water　is　very　slow.

Electrode ComparisonHORIBA vs. ORION (8202, 8272)

HORIBA ORIONHORIBA

Internal　solution Reference Ion　trap

KCL Ag/AgCl Yes

ToupH　Design

Stable　temperature　readings

ORION

Internal　solution Reference Ion　trap

KI Pt No

No　specific　design　for　durability

No　temperature　sensor

StrengthStrengthNot　a　durable　design,　breaks　from　a　certain　height.

StabilityStabilitypH　value　drifted　by　0.5　pH　when　applied　temperature　drift　test.

5

5.5

6

6.5

7

7.5

8

pH

HOR9611

ORION8202

ORION827240℃2　days

Room　temp.

1　hour

Room　Temp.1　hour

Initial

0.5pH

Electrode ComparisonSummary

TOADKK FISHER#9611(new)

#9610 GST-5731C

InLab410

InLab413 8202 8272 13-620-

285SenTix61 Sentix20

Strong ･ pH ROSSROSS/

Sure-FlowAccumetstandard

Glasselectrode ToupH ToupH Strong ･

pHSuperiordurability

Superiordurability

Referenceelectrode

Silverion　trap Filter Silver

ion　trap

Solidpolymericelectrolyte

Fillingsolutionsaturatedwith　Ag

Gel

◎ × ◎ × × ○ ◎ × × ×

◎ ○ ○ ◎ × △ △ × ◎ ×

No.1 No.7 No.2 No.3 No.8 No.5 No.3 No.8 No.5 No.8

WTW

Durability

Ranking

HORIBA METTLER ORION

FeaturePlatinumelectrode

Tap water response(after　three　months)

(old)

In the past…

Electrode　hit　stirrer　or　beaker　and　broke

In the past…

Calibration　in　room　temperature→measurement　at　37℃pH0.1　error　against　pH4　solution

Built-in　Temperature　SensorReliable measurement!

3. 　 High Precision

1. 　 No sample contaminationIn the past…Internal　solution　ooze　out　from　Liquid　junction,　contaminating　the　sample

Ag+　Trap　Technology

No contamination!

2. 　 UnbreakableToupH　DesignStrength even breaking the beaker!

Micro ToupH (9669-10D)World’s smallest w/temp. sensor

In the past…Enough volume of precious or large container has to be prepared

3mm　diameter　sensorRequires only 0.3ml of your sample

4. 　 For microvolume or Precious samples

In the past…

Electrode　hit　stirrer　or　beaker　and　broke

1. 　 No sample contaminationIn the past…Internal　solution　ooze　out　from　Liquid　junction,　contaminating　the　sample

Ag+　Trap　Technology

No contamination!

2. 　 UnbreakableToupH　DesignStrength even breaking the beaker!

ToupH Sleeve (9677-10D)Ideal for viscous or slurry sample

In the past…

Hard　to　measure　viscous　sample　(does　not　come　in　contact　with　liquid　junction)　or　slurry　sample　(clogs　the　liquid　junction)

3. 　 Works with difficult samplesSlurry　DesignViscous sample still contacts with liquid junction, cleaning is also easy

1. 　 Easy maintenance

3. 　 Minimize running cost

・ No　need　to　replace　or　refill　KCl　internal　solution　・ Just　replace　a　tip　when　sensor　is　consumed

Easy to use

・ Food　additives　(CMC,　Glycerine,　KCl)　is　used　for　internal　solution･ Glass　will　not　break　into　sample　(food)・ Tip　design　allows　for　easy　sample　entry

・ Replaceable　tip　makes　it　economical　and　environmentally　friendly.

2. 　 Ideal for food measurement

For meat and fruit

Just replace the tip!

ISFET Electrode (0030-10D)Ideal for food measurement

Cleaning ReagentModel #220

10%　Thiourea,　1%　HCl

Over　50%　of　electrodes　recovers,　based　on　HORIBA　experience.

Effective　for　liquid　junction　cleaning,　removing　contamination　from　inorganic　sample

Digital Simulator Model X-51

Checks　meter　performanceGives　simulation　signal　to　the　meter

(for　pH,　mV,　Ion,　DO　check　)

Checks　meter　performanceGives　simulation　signal　to　the　meter

(for　Conductivity　check　)

Optional Products

Digital Simulator Model X-52

Electrode StandFor Portable meters

AC AdatperFor Portable meters

Ink PrinterFor GLP/GMP compliance