Product DescriptionProduct name :Water Proof Digital Pocket Size pH Meter / Instrument pH-220
3.High accuracy,no need any other auxiliary instruments.
What is pH?A pH (potential of Hydrogen) measurement reveals if a solution is acidic or alkaline (also base or basic). If the solution has an equal amount of acidic and alkaline molecules, the pH is considered neutral. Very soft water is commonly acidic, while very hard water is commonly alkaline, though unusual circumstances can result in exceptions. The pH scale is logarithmic and runs from 0.0 to 14.0 with 7.0 being neutral. Readings less than 7.0 indicate acidic solutions, while higher readings indicate alkaline or base solutions. Some extreme substances can score lower than 0 or greater than 14, but most fall within the scale.Does my pH electrode have to be wet?All glass electrodes have a bulb which must be kept hydrated and a reference junction which must be kept wet to prevent excess leakage of the internal electrolyte solution from the reference junction.What should I store my pH electrode in?Ideally, storage solution has the same chemical make-up of what is in the electrode itself, but if that is not available use buffer 4 or 7 solution. NEVER STORE IN PURE (DISTILLED) WATER!!! In the case of electrodes that are continuously immersed, storage is not an issue since they are constantly wet.Product show
|Model No.||Pen type pH/Temp pH meter PH-220|
|Test range ||pH:0.01-14.00pH ,Temp:0-50ºC , 32-122F|
|Resolution||pH:0.01pH,Temp:0.1 ºC, 1 F|
|Accuracy||pH:0.01pH , Temp:0.1ºC,1F|
|pH Calibration||25ºC 3 points: 4.01 6.86 9.18|
|Power ||1.5Vx4 battery|
1*plastic box Black plastic box can test pH/Temp
|Size||40x185 mm (for meter)|
|Weight||Gross weight:1.5KG, net weight:88g|
|Packaging Details||The normal package is carton. We also can pack it according to customers special request.|
Hangzhou Lohand Biological Co.,Ltd is a professional company that manufactures and exports laboratory instruments and equipments.We have our own registered brand"LOHAND" and own factory,with strong R&D center,sales team,customer service team and QC team,which grows very fast and obtains good reputation in the markt.
Most of the products have CE certificate.All products can be customized according to buyers' special requirements.Certifications
Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.
Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.
Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.
Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.
Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.
Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.
Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.