MW101 performs pH measurements with a 0.01 pH resolution and with manual temperature compensation. It is a compact pH, ORP and temperature portable meter with faster micro processor. These handy and ergonomically designed portable meters are ideal for anyone working on a low budget and still requires fast and reliable measurements. These portable meters are suitable for a wide range of applications, such as educational, agriculture and horticulture, as well as water and environmental analysis. These easier and faster to calibrate portable meters have a smaller, ergonomic and lighter case design. Other features include 100% larger and easier to read LED display and long battery life. All meters are supplied with pH or ORP electrodes and calibration solutions. MW100 is supplied complete with a MA911B/1 pH electrode, pH 7.01 20 ml sachet of calibration solution, calibration screwdriver, 9V battery and instructions.