Ion Director Multi-Reference Highly precise and stabilized reference solution for ION Director calibration and cross-checking. Max. tol. +/ - 1% Ca: 420 mg/l Mg: 1300 mg/l K: 390 mg/l Na: 10700 mg/l NO3 11 mg/l

Ion Director reference B 500ml

Ion Director reference B 1000ml

Ion Director reference A 1000ml

Ion Director reference A 500ml

Buffer solution pH 4

Smart Stir AutoAqua Smart Stir is a handy gadget to help the aquarist perform accurate water analyzes. Water testing is important to ensure the success of a home aquarium. For accurate testing, most liquid test kits require the water sample to be mixed or stirred after adding a reagent. In some cases, you need to add one drop of reagent at a time,...

KH Reference 1000 ml

Buffer solution conductivity 1.41ms

Buffer solution redox 220mv

Buffer solution conductivity 50ms

Buffer solution pH 7