pHep5 Advanced pH Meter HI98128 - Garden Pools & Bridges

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This high-resolution meter displays pH to 0.01 with outstanding accuracy for a pocket meter. Temperature is displayed simultaneously and is automatically compensated for. 5 buffer values are memorised and the meter has a fully automatic calibration procedure with 1 or 2 point calibration. The electrode is replaceable and is easily changed when exhausted by a snap-in replacement. Battery life is monitored and the meter will switch off automatically should you leave it on accidentally. Fully sealed against water and dust and it floats if accidentally dropped into liquid. Supplied with protective cap, electrode removal tool, batteries and instructions. To use this meter you will also need a pH buffer solution for calibration, and storage solution for the electrode.

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Expedition 54 Compass - Professional base plate compass designed for working on a map. With built in magnifier and luminous points. Units: mm, inches. Scales 1:25000, 1:50000, 1:63360 The Expedition 54 is two compasses in one with with an additional unique lensatic precision sighting system accurate to +/- 0.5°.

Agar Powder - A technical grade agar which conforms to the specifications of the US Pharmacopoeia and APHA. Suitable for applications where clarity and compatibility are not of prime importance. It is of high strength and will give a firm gel 1.2% w/v. 500g bottle.

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