WTW ProfiLine pH 3110 Set: 2 pocket pH metres (IP67, with SenTix 41), 2AA112

The WTW ProfiLine pH 3110 Set 2 is the ideal entry-level instrument for users looking for a robust, waterproof handheld meter for routine pH measurement, without being overwhelmed by complex additional functions. With just 6 buttons and a clear LCD segment display, this device focuses on the essentials: fast, error-free readings in the field or laboratory. The set includes the tried-and-tested SenTix ® 41 pH electrode. Thanks to its gel electrolyte, it is maintenance-free, and its plastic shaft makes it extremely break-resistant – ideal for mobile use in harsh environments. The integrated temperature measurement (NTC 30 kOhm) ensures that pH readings are always temperature-compensated and accurate.

Robustness and water resistance

The housing is completely waterproof to IP 67 standard. This means the device can withstand not only rain or splashing water, but also accidental submersion in a tank without suffering any damage. The silicone keypad is seamlessly sealed, easy to clean and provides a secure pressure point (‘click’ feedback) even when worn with wet gloves.

Measurement reliability thanks to AutoRead

Even with this basic model, you don’t have to compromise on quality assurance. The “AutoRead” function monitors the stability of the measurement signal and only locks the reading once it is drift-free. This guarantees reproducible results regardless of the user. The 3-point calibration with integrated calibration timer (1 to 999 days) ensures that you are always measuring with an optimally adjusted system.

Technical details

• pH measurement range: -2.000 … +19.999 pH
• Accuracy (pH): ±0.005 pH
• mV measurement range: ±1200.0 / ±2000 mV
• Temperature measurement range: -5.0 … +105.0 °C
• Calibration: 1-, 2- or 3-point (WTW / DIN/NIST)
• Display: LCD segment display (black and white)
• pH connection: DIN socket (waterproof)
• Protection rating: IP 67 (unit and sensors)
• Power supply: 4 x 1.5 V AA (up to 3,000 hours’ operation)
• Special feature: Integrated calibration timer

Contents of delivery

• ProfiLine pH 3110 meter
• SenTix ® 41 pH electrode (gel, integrated temperature sensor, 1 m cable)
• STP 4 buffer solution (50 ml)
• STP 7 buffer solution (50 ml)
• Measuring beaker
• Tripod
• Professional carrying case
• Batteries (4x AA)
• Quick start guide

Customised requirements & procurement service

Do you require replacement buffer solutions in larger containers or an alternative electrode for puncture measurements (e.g. SenTix SP)? We’d be happy to put together the right accessory pack for your fieldwork.