Vendeur: marine_aqua_farm (19.726) 99.6%, Lieu où se trouve: Thornton Cleveleys, Lieu de livraison: Worldwide, Numéro de l'objet: 322175837314 Brand: Unbranded, Les Détails: ORP / REDOX METER PEN An ideal instrument for testing your aquarium ORP / Redox level. With protective plastic case and calibration screwdriver. This ORP meter is a pen-type device to measure the amount of Oxidation Reduction Potential (ORP) level in sample quickly and conveniently. ORP is a tendency of the solution to either gain or lose electrons. The backlight LCD equipped enables users to do testing and measurement even in dark areas. Oxidation is defined as the loss of electrons in a molecule, atom or ion. An oxidizing agent (Ozone) is a substance that acquires electrons in a Redox reaction. ORP is a potential which is measured in millivolts (mV). The more positive the ORP value, the greater the power of water disinfection, thus the faster the microorganism is killed (oxidized). ORP is correlated with the quality and purity of water. Specification Clear LCD with backlight Compact and portable pen-type design Easy to use and provides instant display of results Batteries included Measuring range : -1999 mV to 1999 mV Accuracy : ±5 mV Resolution : 1 mV LCD Display : 4 Digits Operating Temperature : 0 - 50°C (32 -122°F) Calibration : By mini screwdriver (included) Power Supply : 4 × 1.5 V (AG-13) Button Cell Battery (included) Dimensions : approx. 151mm × 33mm × 20mm (5.94’ x 1.30’ x 0.79’ inch) Weight : approx. 53g What You Get 1 x ORP Meter 1 x Mini Screwdriver COLOURS MAY VARY We Offer Postage Discounts On Multiple Purchases - Simply Buy The Items You Require Then Ask Us For Your New Total. Visit Our Ebay Shop For More Aquatic Supplies If you have any questions about this item or any of our other items please don't hesitate to contact us either through ebay or at firstname.lastname@example.org SHIPPING We take great care packaging every item to ensure safe shipment to you. All the items you buy will normally be dispatched within 48 hours, We send all our items by Royal mail First Class Postage. We also offer Worldwide Postage!