WTW ProfiLine pH 3110 Set 2: pH Measurement Kit with SenTix 41, 2AA112

If you don’t want to put together a pH meter and a suitable electrode separately, the WTW ProfiLine pH 3110 Set 2 offers a complete, ready-to-use package in a carrying case. As well as the 2AA110 meter, the set includes the SenTix 41 electrode, along with buffer solution, a stand and a beaker for your first measurements.

What’s in the case

The carrying case contains the ProfiLine pH 3110 meter, the SenTix 41 pH electrode (item no. 103635), STP 4 and STP 7 buffer solutions, a stand, a beaker, the quick start guide and the batteries. This means you can calibrate and take measurements immediately after unpacking, without having to order the electrode, buffers or accessories separately.

Measuring instrument with IP67 rating and flexible calibration

The main unit is technically equivalent to the 2AA110 single-unit model: IP 67 protection rating, 1- to 3-point calibration with AutoCal TEC and AutoRead stability check, integrated calibration timer and 6-button operation, even when wearing gloves. The pH measurement range extends from -2.000 to +19.999 pH, with additional mV and temperature measurement. The unit is powered by 4 AA batteries with a runtime of approx. 2,500 operating hours; it stores up to 5,000 GLP entries internally.

SenTix 41 electrode included in the set

The included SenTix 41 has a plastic shaft with a maintenance-free gel electrolyte, a fibre diaphragm and an integrated NTC temperature sensor. It is connected via a 1 m fixed cable with a DIN plug and a 4 mm banana plug, compatible with the meter’s DIN input. The measurement range covers 0 to 14 pH at temperatures between 0 and 80 °C; the membrane resistance is less than 1 GOhm.

Typical applications

• Immediate access to pH measurement without the need to purchase separate equipment
• Mobile use at water bodies and sampling points thanks to the carrying case
• Equipping new measuring stations in the laboratory with a full range of accessories
• Routine measurement in industrial and wastewater laboratories

An obvious example is the set-up of a new measurement station: rather than having to assemble the meter, electrode, buffer solution and accessories individually, Set 2 provides a calibration-ready workstation straight out of the case.

Difference compared to the 2AA110 single unit

The ProfiLine pH 3110 single unit (item no. 2AA110) is supplied without an electrode and is aimed at customers who already own a suitable SenTix electrode or wish to use another model, such as the SenTix 81 precision electrode (item no. 103642). Set 2 eliminates this intermediate step and provides the meter, electrode, buffer solution and accessories as a complete package.

Accessories for immediate use

The stand and beaker included in the case allow for a stable measurement setup directly at the workstation, without the need to organise additional laboratory equipment. The included STP 4 and STP 7 buffer solutions already cover one acidic and one neutral calibration point; for a complete 3-point calibration, an alkaline buffer solution (pH 10) can be added if required.

The carrying case protects the measuring instrument, electrode and accessories during transport between sampling points or laboratory workstations and keeps the individual parts organised in one place, rather than having to gather them together separately.

Technical details

Scope of delivery

• 1 WTW ProfiLine pH 3110 handheld meter in a carrying case
• 1 SenTix 41 pH electrode (item no. 103635)
• Buffer solutions STP 4 and STP 7
• Stand and beaker
• Quick start guide
• Batteries

Regulatory information

The WEEE registration number DE 29884659 held by Xylem Analytics Germany GmbH applies to the instrument component; this is a collective registration with the EAR Foundation for the WTW brand. The SenTix-41 electrode included in the set is a passive sensor without its own electronics and is therefore not affected by this registration.

Individual requirements and procurement service

Once the buffer solution in the set has been used up, LT Laborhandel supplies refills of the Technical Buffer Solution pH 4.01 (item no. 108706) and pH 7.00 (item no. 108708). For replacement electrodes, additional accessories or specific enquiries regarding the kit, please contact the procurement service at lt-laborhandel.com/service.