The MW-MW150US 3-in-1 pH/OPR/Temp. Bench Meter is reliable and fast with simple operation. The meter has a tough, sleek, lightweight design with a small lab space footprint. It is accurate to ± 0.01 pH with automatic or manual temperature compensation, and built in dedicated GLP key.  In addition, up to 3-point automatic calibration and 7 selectable buffer standards makes the MW-MW150US ideal for use by brewers, wine makers, growers, labs, food processing, water treatment and many other applications with challenging pH measurement needs.

Features:

• Fast easy to read results with large duel level digital LCD readout.
• Extreme accuracy to ±0.01 pH | +/-0.4°C | +/-0.8°F. 
• Extended range (-2.00 pH to 20.00 pH).
• Lightweight and small bench footprint.
• Easy measurement: just place the pH electrode and temp. probe in the sample, gently stir and wait for the reading to stabilize.
• Simple push button, automatic up to 3 point calibration for increased accuracy.
• Up to 7 selectable pH calibration buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45).
• Refillable, double junction, lab grade pH electrode for low maintenance and high performance with a screw on cap to ensure proper storage.
• Automatic Temperature compensation (ATC). 
• Built-in rechargeable battery with 8 hours battery life (battery included).
• Alphanumeric LCD display messages for friendly, intuitive information, warnings and error messages.
• Internal clock date to keep track of different time-dependent functions (calibration, timestamp, calibration time out).
• Dedicated GLP key function.
• 3 feet probe cables for extra flexibility when testing.

Specifications:

• pH electrode: MA917B/1 glass, double junction pH electrode (supplied)
• ORP Electrode: (Sold Separately - Inquire)
• Temperature probe: MA831R temperature probe (supplied)
• Power supply: 12VDC (included)
• Battery life: Approx. 8 hours of use
• Auto-off: Selectable 5, 10, 30, 60 min. or off
• Environment: 0 to 50°C / 32 to 122°F; max RH 95%

**NOTE** When you unplug the temperature probe from the unit it will default to MTC (manual temperature compensation).  You can then enter the temperature of the testing solution by using the up/down arrows on the keypad.