HORIBA Portable Meter Line-up pH ○ ORP Conductivity ISE DO (O2) Resistivity Salinity Temperature Turbidity Depth TDS SSG

HORIBA Benchtop Meter Line-up pH ○ mV Conductivity Resistivity Salinity ISE Temperature Navi function

HORIBA 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 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 field Data storage up to 300 sets with time stamp. DO O2 Temperature

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 Resistivity Salinity Temperature

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 field Data 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 IP67 One-touch calibration makes work easy Up to one month monitoring Heavy-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 Seawater Specific Gravity Turbidity TDS Depth

Benchtop Meters

DS-50 series (DS-51, DS-52) Benchtop single parameter meter to measure Conductivity RS-232C output standard Battery operation possible for portability. D-52 with color display and navigation features Conductivity Resistivity Salinity Temperature

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. pH ORP Ion Temperature Conductivity Resistivity Salinity

HORIBA Sensor Technology

Ag+ Trap Technology ToupHer Design New ToupH Series Electrode HORIBA Introduced ToupH 9610-10D electrode 2003 HORIBA Introduces ToupH family with… Ag+ Trap Technology No Ag+ spill, long lasting ToupHer Design Shorter and wider

Ag+ Trap Technology No Ag+ spill, long lasting Slow Response Ion exchange material traps Ag+ and prevents Ag+ from spilling into the internal solution Ag+ within the internal solution saturates and clogs the liquid junction Slow Response Ag+ Contaminates sample Maintained Fast Response No Ag+ Contamination 　New Former KCl Internal Solution Ag/AgCl Electrode KCl Internal Solution Ag/AgCl Electrode Pin hole to Teflon Coating Ion exchange material Pin hole to Teflon Coating Liquid Junction Liquid Junction

3 months monitoring in Protein Sample Ag+ Trap Technology 3 months monitoring in Protein Sample Conventional New Initial 3 months Repeatability pH4 0.02 0.01 pH7 0.03 pH9 0.11 0.04 Sensitivity (%) pH4 to pH9 99 86 98 Tap Water T90 14 327 11 32 Liquid Junction Color White Black

The response is 40 times faster Ag+ Trap Technology 3 months monitoring in Tap Water The response is 40 times faster 10 5 mV Conventional -5 New -10 300 600 900 1200 1500 1800 time(s)

ToupHer Design Conventional New Shorter and Wider Conventional New 11mm 15mm φ6mm φ8mm Strength 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 volume Available as ToupH Family: General purpose, Sleeve and Micro pH electrodes

Electrode Comparison HORIBA vs. Accumet (13-620-285) Response 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 Response Due to no solution made for Ag+ spill, the response time will become slow in a few months. Strength Not a durable design, breaks from 10cm height. Temperature accuracy for pH measurement Temperature detected at G pole and the actual temperature at R pole may differ →unreliable pH value

Electrode Comparison HORIBA vs. Mettler Response 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 HORIBA Stabilizes in 3 minutes Response Due to the storage in KCl solution, response against tap water is very slow. METTLER Stabilizes in 9 minutes *Stabilization: Within 0.01pH drift in 1 minute

Electrode Comparison HORIBA vs. ORION (8202, 8272) Strength 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 5 5.5 6 6.5 7 7.5 8 pH HOR9611 ORION8202 ORION8272 40℃ 2 days Room temp. 1 hour Room Temp. Initial Strength Not a durable design, breaks from a certain height. Stability pH value drifted by 0.5 pH when applied temperature drift test. 0.5pH

Electrode Comparison Summary HORIBA METTLER ORION FISHER WTW Glass TOADKK METTLER ORION FISHER WTW #9611 #9610 GST- InLab 410 InLab 413 13-620- 8202 8272 SenTix61 Sentix20 (new) (old) 5731C 285 ROSS/ Accumet Strong･pH ROSS Sure-Flow standard Glass Strong･ Superior Superior ToupH ToupH electrode pH durability durability Feature Filling Reference Silver Silver Solid Platinum solution Filter polymeric Gel electrode ion trap ion trap electrode saturated electrolyte with Ag Tap water response ◎ × ◎ × × ○ ◎ × × × (after three months) Durability ◎ ○ ○ ◎ × △ △ × ◎ × Ranking No.1 No.7 No.2 No.3 No.8 No.5 No.3 No.8 No.5 No.8

World’s smallest w/temp. sensor Micro ToupH (9669-10D) World’s smallest w/temp. sensor 1.　No sample contamination In the past… Internal solution ooze out from Liquid junction, contaminating the sample Ag+ Trap Technology No contamination! 2.　Unbreakable ToupH Design Strength even breaking the beaker! In the past… Electrode hit stirrer or beaker and broke 3.　High Precision Built-in Temperature Sensor Reliable measurement! In the past… Calibration in room temperature →measurement at 37℃ pH0.1 error against pH4 solution 4.　For microvolume or Precious samples In the past… Enough volume of precious or large container has to be prepared 3mm diameter sensor Requires only 0.3ml of your sample

Ideal for viscous or slurry sample ToupH Sleeve (9677-10D) Ideal for viscous or slurry sample 1.　No sample contamination In the past… Internal solution ooze out from Liquid junction, contaminating the sample Ag+ Trap Technology No contamination! 2.　Unbreakable ToupH Design Strength even breaking the beaker! In the past… Electrode hit stirrer or beaker and broke 3.　Works with difficult samples In the past… Hard to measure viscous sample (does not come in contact with liquid junction) or slurry sample (clogs the liquid junction) Slurry Design Viscous sample still contacts with liquid junction, cleaning is also easy

Ideal for food measurement ISFET Electrode (0030-10D) Ideal for food measurement 1.　Easy maintenance ・No need to replace or refill KCl internal solution ・Just replace a tip when sensor is consumed Easy to use 2.　Ideal for food measurement ・Food additives (CMC, Glycerine, KCl) is used for internal solution ･Glass will not break into sample (food) ・Tip design allows for easy sample entry For meat and fruit 3.　Minimize running cost ・Replaceable tip makes it economical and environmentally friendly. Just replace the tip!

Optional Products Cleaning Reagent Model #220 10% Thiourea, 1% HCl Effective for liquid junction cleaning, removing contamination from inorganic sample Over 50% of electrodes recovers, based on HORIBA experience. Digital Simulator Model X-51 Digital Simulator Model X-52 Checks meter performance Gives simulation signal to the meter (for pH, mV, Ion, DO check ) Checks meter performance Gives simulation signal to the meter (for Conductivity check ) Electrode Stand For Portable meters AC Adatper For Portable meters Ink Printer For GLP/GMP compliance