PICCOLO® is a revolutionary pH meter with a 4-in-1 amplified electrode. Conventional pH meters are susceptible to the weak, high impedance signal which makes the electrode, connector, cable and meter vulnerable to noise, humidity and dirty environments. PICCOLO® has overcome these problems with a pre-amplified electrode delivering a strong signal to the meter. The interchangeable electrode is inexpensive, rugged and houses the pH sensor, reference system, temperature sensor and the amplifier module. Order Information: HI 98111 ( PICCOLO® ) is supplied complete with 90 mm ( 3.5” ) HI 1280 amplified pH electrode, pH 4.01 and pH 7.01 buffer solution sachets, calibration screwdriver, batteries, rugged carrying case and instructions.