Conductivity Meter electrodes invariably become coated with inorganic or organic impurities. This causes a loss of accuracy. Conductivity (cF, mS) or TDS measurements are used to gauge the total concentration of all salts (i.e. both beneficial and toxic) present in the nutrient solution. They cannot provide any detail on the concentrations of individual nutrients. Therefore, since a ‘satisfactory’ reading does not imply a balanced nutrient mixture (or provide information on the level of nuisance salts), it is wise to dump every 7-14 days. This is particularly necessary when using salty make-up water because such water causes nuisance chemicals to build up rapidly to toxic levels.
- For Calibration of Conductivity (EC) and TDS Meters
- Calibrates to 2.76mS/cm or cF 27.6 at 25oC (77oF)
- Contains Potassium Chloride
- Based on international (APHA) standard formula
Fast Shipping and Professional Packaging
Our long-standing partnership with UPS FedEx DHL and other international carriers lets us offer an array of shipping services. Our warehouse staff are trained to package your goods exactly as per the specifications we provide. Your items will go through a thorough examination and will be securely packaged before being sent out. Every day, we deliver to thousands of customers in many countries. This is an indication of our commitment to be the largest online retailer globally. The warehouses and centers of distribution are located in Europe and the USA.
Orders with more than one item are assigned processing periods according to each item.
Prior to shipping the items, our staff will carry out an extensive inspection of the products you have ordered. The majority of orders are delivered within 48 hrs. The delivery time is between 3-7 working days.
Returns
Due to the multiple parties involved which include the factory as well as the warehouse, we cannot fully manage stock. The stock can change at any moment. Be aware that it's possible that your order will be out of stock after you've placed your order.
Our policy lasts thirty days. Unfortunately, if thirty days have passed since you purchased your item, we will not be able to give you a refund or exchange.
The item should not be used and in its original condition. The item must be returned in the original packaging.
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