Electrochemical Instruments-Water planting-Mercury oxide mercury electrode-Nutrient Wand EC Meter-Nutra Dip Tri Meter-Nutra-Wand-pH метры для косметики
Volume: 5ml, 10ml, 15ml, 20ml, 30ml, 50ml Optional: Lujin capillary, F-type inlet and outlet device, liquid sealing device