< br > < br > PH-009 (I) is a wireless and battery-powered, pen-shaped digital pH meter < br > < br > Ideal for when you need to measure the pH of your aquarium, fish pond or seawater. The gauge covers the full pH scale from 0.0-14.0, works in water between 0-50 degrees Celsius and provides response in only 1 minute. The pH meter is easy to use and compact enough to allow you to measure the pH value with simplicity. < br > < br >-Digital pH meter in pen format < br > < br >-works in water at temperatures between 0 and 50 degrees Celsius < br > < br >-capable of measuring the entire pH scale from 0.0-14.0 < br > < br >-Provides answers in only 1 minute < br > < br >-Ideal for the aquarium, fish pond or Lake < br > < br > Specifications : < br > < br > Colour: Yellow < br > < br > Material: Plastic < br > < br > Size: 2.5 cm x 15cm x 1cm < br > < br > Weight: 47 g < br > < br > Battery: 3x AG-13 button cell battery (1.5 V) < br > < br > Precision: +/-0.1 pH (at 20 degrees C/68 degrees F) < br > < br > Range: 0.0-14.0 pH < br > < br > Life (Work): approx. 700 hours < br > < br > The package contains : < br > < br > 1x pH Gauge < br > < br > 3x AG-13 Battery < br > < br > 1x Screwdriver < br > < br > 2x 250ml pH buffer Powder < br > < br > 1x User Manual (English) < br > < br >