Tip:
 If you have a swimming pool, aquarium or spa, you will need to conduct a pH test regularly. However, troublesome liquid solutions may not provide you with the accuracy you need. Let go of the measuring cup and choose the convenience of pre-measurement.

    

• Specifications:

1. -5 * 4.01 solution (potassium hydrogen phthalate)

2. -5 * 6.86 solution (mixed phosphate)

3. -5 * 9.18 solution (Borax)

   
   

   User's guidance:

 Step 1: Pour the powder completely into a clean 250mL glass beaker.

 Step 2: Add 250mL of deionized water (or distilled water) to the beaker.

 Step 3: Stir until the powder is completely dissolved.

 Step 4: Calibrate the pH meter according to the Esee pH meter calibration procedure (for Esee PH meter: B01LWMJVPG)

Note: Not drinkable!

• Package Includes:

15pcs

• Shipment:
  

Our products have local warehouse, including US warehouse, and we do not ship to APO/FPO.

Orders processed within 24-48 hours of payment verification. (On Sunday is our rest day).

Before buying, Please make sure your PayPal and eBay address is correct. If not, please correct it before payment.if you want me send the item to another address,please send me a message.

If you have not received your shipment within 10 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!

Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

• Payment:
  

We only ship item to your verified address.

Payment must be received within 5 days from the date of purchase. Cancellation request should be submitted during this period.

Payment must be received within 7 business days of auction closing.

Please make sure your PayPal and eBay address is correct. If not, please correct it before payment. Thank you.

Custom duties, taxes, or extra charges are not included in the cost you pay to us.

Please check with your country's customs office to determine what these additional costs will be prior to bidding/ buying.

• Feedback:

Very appreciated for your support. I hope you are happy with your purchase.

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We appreciate your continuous patience and willingness to work with us. Thank you for choosing us and have a great day!

• About Us:
  

Welcome to my shop,We offer an extensive range of products selected by our professionals.superiority in details and quality is a high priority. We also have a high-standard team, qualified by authorized organizations to ensure products are of the highest quality.

As an online seller, we collaborate with excellent international transport companies, we have our own warehouses, offering the most convenient delivery service possible. On-time shipping and reliable quality control are key areas of importance in our shop.

We are increasingly expanding international markets based on high quality products, excellent service, reasonable priceboas and timely delivery. Please contact us at any time for more information.We work hard to make sure EVERY CUSTOMER 100% approvingly.