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.
HI 98201 is ideal for swimming pools and spas and can provide a valuable indication of water quality. This 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.
Note: This tester is not recommended for testing anti-oxidant drinking water. Please call us for more information.
Order Information: HI 98201 (ORP) is supplied with protective cap, batteries and instructions
Manual: Download
Specification :
| Range | mV | ±999 mV |
| Resolution | mV | 1 mV |
| Accuracy | mV | ±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.) |
เซ็นเซอร์วัดออกซิเจนในน้ำสำหรับ HI9829 มัลติพารามิเตอร์
HI98128 pH/°C-Tester (0.01 pH resolution) - waterproof
HI7035L - EC 111800 µS/cm@25°C - 500ml
HI98120 ORP/°C-Tester, waterproof
เครื่องวัดค่าเหล็ก รุ่น HI721
HI70080C - 800 mg/l (ppm) TDS@25°C Zert. - 25x20ml
HI70030C - EC 12880 µS/cm@25°C Zert. - 25x20ml
Calibration Standard HI 771 Checker HC ®
HI5521 Research Grade pH/ORP and EC/TDS/Salinity/Resistivity Meter with CAL Check™
HI771 Checker HC ® - Chlorine, Ultra-High Range
HI5005 - 5.00 pH@25°C - TQ - 500ml
HI715 Checker HC ® - Ammonia, MR
HI98129 COMBO Tester for pH/EC/TDS/C° up to 3999 µS, waterproof
เครื่องวัดปริมาณกรด-ด่าง/การนำไฟฟ้า/อุณหภูมิ แบบมอนิเตอร์ รุ่น HI981420-02
HI70030C - EC 12880 µS/cm@25°C Zert. - 25x20ml
น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม 



