Oxidation reduction is a process by which a molecule or ion loses or gains electrons. This occurs most readily in water treatment and in pool and spa maintenance where an oxidizer, such as chlorine, is added to the water to destroy contaminants. The higher the ORP value, the greater the sanitizing power of your water. HI98201 is ideal for swimming pools and spas and can provide a valuable indication of water quality.
The HI98201 tester utilizes a platinum electrode and Hanna unique renewable cloth junction, that can be pulled out when clogging occurs, reactivating the reference and restoring the electrode. This tester also features Hanna's Battery Error Prevention System (BEPS) which prevents erraneous readings due to low battery level, by automatically switching the meter off.
ORP Range ±999 mV ORP Resolution 1 mV ORP Accuracy ±5 mV Battery Type/Life 1.5V (4) / approximately 700 hours of continuous use Environment 0 to 50°C (32 to 122°F); RH max 95% Dimensions 175 x 41 x 23 mm (6.9 x 1.6 x 0.9’’) Weight 95 g (3.4 oz.) Ordering Information HI98201 (ORP) is supplied with protective cap, batteries and instructions