he Pro1020 provides everything you need in a handheld meter that measures dissolved oxygen and temperature along with either pH or ORP (redox). Rugged, simple and reliable. Measure pH or ORP, dissolved oxygen, and temperature.

EPA approved for drinking water and wastewater compliance reporting.

Instrument Only.  Cables, probes/sensors, and accessories are sold separately.

Rugged and reliable, the YSI Pro1020 provides everything you need in a handheld instrument for the measurement of either pH or ORP along with temperature, and dissolved oxygen.

User-replaceable sensors and cables along with convenient calibration routine features make it extremely user-friendly. Mil-spec (military spec) connectors, IP67 waterproof and rubber over-molded case, and 1-meter drop tests ensure the instrument remains in your hands to provide years of sampling even in the harshest field conditions. The feature set of the Pro1020 results in a low total cost of ownership over the life of the product and proves that it is smarter, tougher, and more versatile.

Additional features include:

• User-replaceable cables and sensors provide versatility, reduce downtime and reduce the overall cost of ownership.
• Available with 1- 4- 10- 20- and 30-m cable lengths standard (cable management kit included on all cables 4-m and longer).
• Smart calibration; the instrument remembers the previous calibration values and simply walks you through the routine.
• Stores 50 data sets; no need to write down data.
• Large graphic, backlit display, and glow-in-the-dark keypad. Usable in any lighting condition. The display is also visible when wearing polarized sunglasses.
• Tough. IP67, impact-resistant, waterproof case. Waterproof without the battery cover as well.
• Rubber over-molded case provides extra durability. Military spec connectors are unsurpassed for ruggedness.
• Multiple languages include English, Spanish, French, and Portuguese.
• Choose either polarographic or galvanic DO sensors.
• Quick response times; 95% DO response time is approximately 8 seconds with the standard membrane (fastest response time in the market).
• 3-year instrument; 2-year cable; 1-year sensor warranty (Galvanic DO is 6-months)