Identified by colour-coded labels. Tolerance ±0.03 pH.

Basic pH combination electrodes, with plastic body, gel reference system. SenTix^® 20 with plug head (AS/DIN or AS/BNC cable combination please order separately). Sentix 21-3 and Sentix 41-3 with 3 m fixed cable.

Specifications
Temperature range:	0 ... 80 °C
pH range:	0 ... 14 pH
Length / diam.:	120 mm / 12 mm
Electrolyte:	Gel
Diaphragm:	Fibre
Membrane shape:	Cylindical
Membrane resistance at 25°C:	1 GΩ

To DIN/NIST. Supplied in 250ml bottles. Tolerance ±0.02 pH.

Reliable Documentation for pH measurement, if desired also available with built-in printer. A modern backlit graphic display with menu controlled user interface allows easy and intuitive operation. The mini USB-B interface provides fast data transfer to a PC. The internal memory can record up to 5000 GLP complying data including ID, date and time. The housing and the keypad are easy-to-clean. Up to five calibration points cover almost the complete pH range. A calibration history of the 10 last calibrations allows conclusions on the state of the sensor. An integrated thermal printer (58mm width) is ready for printout of the measured data (option). Supplied with: meter, power supply, stand and USB cable.

Specifications
Ranges:	All values ±1 digit
pH:	-2.0 ... 20.0 ±0.1 pH -2.00 ... 20.00 ±0.01 pH -2.000 ... 19.999 ±0.005 pH
mV:	± (1200.0 ±0.3) mV ± (2500 ±1) mV
Temperature:	-5.0 ... 105.0 °C ±0.1 °C
Calibration:	1-, 2-, 3-, 4-, 5 point WTW technical. DIN, NIST and 20 additional buffer sets
Calibration memory:	Up to 10 calibrations recallable
Display:	LCD Graphic, backlit
Memory:	manual 200/5000 automatic
Logger:	manual/time controlled
Interface:	Mini USB-B
Power supply:	Universal power supply, 100 ... 240V, 50/60 Hz, 4 x 1.5V AA or 4 x 1.2V NiMH

For the SensoLyt^® armature, for the installation in a flow vessel or in a replacement fitting

• For drinking water, wastewater or in the process
• Also for high pressure and temperature conditions
• Easy to maintain by easy measuring chain replacement

For all pocket measuring devices for analog measuring cells from the 3xx series, as well as all inoLab laboratory measuring devices for analog measuring cells.

Standard conductivity cell probe TetraCon^® 325:
4-pole cell with integral temperature sensor. Measuring range: 1µS/cm to 2S/cm.

Special conductivity cell probe TetraCon^® 325/C:
As TetraCon^® 325, 4-pole cell with integral temperature sensor, but with sensor head made of chemically resistant PEEK. Measuring range: 1µS/cm to 2S/cm

Suitable for all laboratory and field electrodes except StirrOx^® G.

Electrolytes are used as refill solutions for liquid filled electrodes as well as a storage solution for all types of pH electrodes. With the pepsin cleaning solution, you can remove protein precipitation from the diaphragm of electrodes with liquid electrolyte.

Low maintanance pH electrodes with plastic shaft and gel electrolyte, with built-in temperature sensor NTC 30 kOhm. With waterproof digital connector, cable length 1.5 m, SenTix^® 940-3 with 3 m cable.

Specifications
Temperature range:	0 ... 80 °C
pH range:	0 ... 14 pH
Length / diam.:	120 mm / 12 mm
Electrolyte:	Gel
Diaphragm:	Fibre
Membrane shape:	Cylinder
Membrane resistance at 25°C:	< 1GΩ

Standard pH combination electrodes with glass shaft, non-solid electrolytes. With fixed cable (1m). SenTix^® 60 with screw head (AS/DIN or AS/BNC cable combination please order separately).

Specifications
Temperature range:	0 ... 100 °C
pH range:	0 ... 14 pH
Length / diam.:	120 / 12mm
Electrolyte:	Liquid, KCl 3mol/l
Diaphragm:	Platinum
Membrane shape:	Conical
Membrane resistance at 25°C:	600 MΩ
Refill hole cover:	Slide

For testing ORP electrodes. 427mV, pH7.
Supplied in pack of 250ml.

Test resistors and calibration solutions to test the meters with conductivity function as well as to calibrate the system from the device and conductivity measuring cell

• Optimal measuring safety by PTB/NIST traceable standard solutions
• Easy device check by highly precise test resistors
• Pharmacopeia conforming test kits

Optical IDS D.O. sensor for portable MultiLine^® IDS and InoLab^® Multi IDS benchtop meters. Measures the dissolved oxygen according DIN ISO 17289:2014-12. For applications in the lab and in process, outdoor and waste water treatment plants. Low maintenance (t99 < 60 s). No oxygen consumption, with inclined membrane for avoiding air bubbles. Factory calibrated membrane with smart chip. Built-in NTC 30 kOhm temperature sensor.

Specifications
Temperature range:	0 ... 50.0 °C ± 0.2 °C
DO concentration:	0.00 ... 20.00 mg/l ± 0.5 % of value
DO saturation:	0.0 ... 200.0 % ± 0.5 % of value
Partial pressure:	0.0 ... 400 hPa ± 0.5 % of value
Shaft length / diam.:	150 mm / 15.3 mm

The WTW ProfiLine, hand-held, pH/mV meters are robust and waterproof, according to IP67. They have LCD or graphics displays. The proven DIN socket for connecting pH electrodes permits pH measurement even in wet environments. The instruments can be operated by standard alkaline or rechargeable batteries.
Make testing of pH and redox potential simple. Easy operation virtually eliminates errors. All function keys of the 3110 can be operated even when wearing gloves; automatic calibration and AutoRead functions ensure stable and reproducible results. The multifunctional display for pH, mV and temperature is always easy to read.

Measuring ranges
pH:	-2.0 ... 20.0 -2.00 ... 20.0 -2.000 ... 19.999
Accuracy:	± 0.01 (± 1 digit) ± 0.005 (15 °C ... 35 °C)
mV / Accuracy:	± 1200.0 / ± 0.3 ± 2000 / ± 1
Temperature:	-5.0 °C ... 105.0 °C
Accuracy:	± 0.1 °C
Temperature compensation:	Automatic via pH electrodes with integral temperature probe, TFK 325 or Pt1000

With glass shaft, Ag/AgCl reference system, connections for AS/DIN, AS/DIN-3, AS/BNC, S7 plug head.

Specifications
Temperature range:	0 ... 100 °C
Length / Diam.:	120 mm / 12 mm
Electrolyte:	KCl 3 mol/l
Sensor:	Platinum
Sensor shape:	Disc (4 mm)
Diaphragm:	Ceramic

Connection cable for pH electrodes with plug head connection to plugs as indicated.

For connection to WTW IDS measuring instruments.

IDS conductivity cell probe TetraCon^® 925:
Intelligent digital 4-pole cell with integral temperature sensor. Automatical transfer of the cell constant. Cable length 1.5 metres. Measuring range: 1µS/cm to 2S/cm.
TetraCon^® 925-3:
Like TetraCon^® 925, but cable length 3 m

IDS conductivity cell probe TetraCon^® 925/LV:
Intelligent digital 4-pole cell with integral temperature sensor. Fork design, suitable for small volumes (at least 2.5ml) as well as for viscous samples. Automatical transfer of the cell constant. Cable length 1.5 metres. Measuring range: 1µS/cm to 2S/cm.

IDS conductivity cell probe LR 925/01:
Intelligent digital 2-pole cell with integral temperature sensor and flowthrough cell D 01/T for measuring of low conductivity values (<1µS/cm) e.g. in boiler feed water or ion exchange water. Automatical transfer of the cell constant. Cable length 1.5 metres. Min./max. immersion depth 35/110mm and flow through measurement. Measuring range: 0.01µS/cm to 200µS/cm.

Precision pH electrodes with glass shaft and liquid electrolyte KCl 3 mol/l Ag+ free, with built-in temperature sensor NTC 30 kOhm, cable length 1.5 m.

Specifications
Temperature range:	0 ... 100 °C
pH range:	0 ... 14 pH
Length / diam.:	120 mm / 12 mm
Electrolyte:	KCl 3 mol/l Ag+ free
Diaphragm:	Platinum wire
Membrane shape:	Cone
Membrane resistance at 25°C:	< 600 MΩ

Professional pH and redox meter for mobile measurements. The pH/Cond 3320 has a robust, waterproof housing (IP67) and is equipped with a memory as well as a data logger with an adjustable interval between 1 s and 60 min. All entries contain GLP-supporting data, like the date, time and ID number. The modern, waterproof USB interface is used for easy and quick data transfers. Applications: Process chemistry, Life Science, food and beverage industry, pharmaceutical industry (measurement of pH and conductivity according to pharmacopeia).

• Two inputs for the simultaneous measurement of pH/mV/ISE/redox potentail and conductivity
• Backlit graphic display for the parallel display of the measured values
• Perfect for monitoring process applications
• Waterproof USB interface

Scope of supply: Meter in transport case with SenTix® 41, TetraCon® 325, buffer solution STP 4 and STP 7, conductivity standard 0.01 mol/l KCl, manual, stand, beaker, CD-ROM, driver software for USB, battaries, cable

Specifications
Measuring range / Resolution
pH:	-2.000 … 19.999 ± 0.005 pH
mV:	-2500 ... +2500 ± 1 mV
ISE (mg/l, µmol/l, mg/kg, ppm, %):	0.000 … 999999
Conductivity:	0.000 µS/cm ... 1000 mS/cm
Salinity:	0.0 ... 70.0
TDS:	0 mg ... 199.9 g/l
Temp.:	-5.0 … 105.0 °C ± 0.1 °C
Memory:	Manually 200/5000 automatically
Power supply:	4 x 1.5 V AA or 4 x 1.2 V NiMH battery
IP code:	IP 67