YSI 60 pH & Temperature Meter

The YSI 60 measures pH and temperature at depths up to 100 feet. The rugged pH electrode is field replaceable and has an industry-leading one year warranty. The YSI 60 features automatic push-button calibration, low-battery indicator & automatic temperature compensation (ATC). pH and temperature readings can be viewed on the bright, backlit display or stored in a 50 reading memory. More details at YSI 60

Hanna HI 991001/2 Waterproof pH & Temperature Meter

The HI 991001 and HI 991002 pH (ORP) & temperature meters are economical waterproof handheld meters ideal for field spot checks. The HI 991001 has an extended range from -2.00 to 16.00 pH and simultaneously displays temperature from -5.0 to 105.0 °C; the HI 991002 also measures ORP in the ±1999 mV range. The large display with graphic symbols guides the user through all operations and calibration processes. More details at HI 991001/2

Pocket pHep 5 Waterproof pH Tester

When the first version of the pHep (pH electronic Paper) was designed in 1986, it immediately revolutionized the standards in pH measurement. The pHep's ease-of-use in combination with its affordability made it possible for non-technical and technical personnel alike to measure pH on the spot, accurately and inexpensively throughout a variety of industries. Since its introduction, over 1 million pHep's have gone to satisfied customers around the world. More details at Pocket pHep 5