Product description:

1:TDS water quality testing pen is used to test the TDS value of water conductivity of water， to determine the extent of water. The temperature and the environment is a function of temperature.

2: the product can be widely used in the water treatment industry， drinking water industry， family and individual family travel and field work of drinking water quality testing tools.1

3 test items:? The water quality of PPM TDS (mg/L) gun Ji Mu S/cm， Celsius， Fahrenheit

4: test range: TDS:0 ~ 9999 ppm.

5: resolution: < 1000， 1 ppm and 1000 ppm; automatic transmission.3

6: test accuracy: plus or minus 2%.

7: temperature measurement range: 0 degrees 99 degrees Celsius (32 degrees Fahrenheit)， the accuracy rate was 0.1.

8: the use of the environment: 0， 50， the maximum relative humidity is 95%.

9: Battery: 1.5 * 2 volts (button batteries (not included))2

Use TDS pen:

Open the TDS pen probe cover， on / off button according to the subscript for LCD display， measuring TDS pen into the water， water can test the TDS value， water quality of the direct drinking water standard， the light is green， not directly for drinking water quality standards， the background light is red. After the test， with dry paper wipe pen probe TDS.

Use case:

Drinking purified water standard test: less than 50 ppm of pure water

Detection of mineral water standards for mineral water， 100-200 PPM.

Whether it is laundry cleaning: water or water PPM test use， the data difference is not too large.

Tap water testing qualified: national standard 50-300 PPM.

Pure alcohol: PPM is greater than 0， which means not pure.

At the high side dishes PPM value， indicating that chemical pollution 451. We accept Alipay.

2. All major credit cards are accepted through secure payment processor ESCROW.

3. If you can\'t checkout immediately after the auction ends，please wait for a few minutes and retry payment. Friendly advise you to pay soon， so that we can arrange the shipment as soon as possible.

 

Shipping 

                                                                                                 
1. Worldwide Shipping(Except some countries). Normally， it will take 7-22 business days arrive(Sat. & Sun. & Public holiday excluded.)

2. Items are generally shipped out with 1-3 business day after your payment has been cleared (Sat. & Sun. & Public holiday excluded.)

3. Taxes and charge are not included in the item price or shipping charge. these charges are buyer\'s responsibility.

4. Note: We hope it arrives on time but since this is an international delivery， shipping time will be highly depended on the logistics company and local weather， customs/duties， postage， hope  you understanding.

5. If you have not received your items within 30 days from payment， please contact us. We will track the delivery information and get back to you as soon as possible with a reply. Our goal is customer satisfaction.

6.Please fill in complete consignee name & delivery address & contact information.

 

Guarantee

 

1. If you received an incorrect， damaged， defective， or item not as described， please contact us for a partial/full refund or replacement on our cost.

2. Receive the product within 7 days， we will be happy to exchange or refund for you， as long as all original packaging and accessories are in original condition.

3. If for any reason you are not satisfied with your purchase， please contact us and we will do our best to resolve it.

4. We maintain high standards of excellence and strive for 100% customer satisfaction.

 

Return and Refund


1. All returned items must be in the original packaging and you must provide us with the shipping tracking number， specific reason for the return.

2. If returns for product quality problems，we will refund your full winning bid amount， upon receipt of the item in its original condition and packaging with all components and accessories included， after both Buyer and Seller cancel the transaction from aliexpress. or， you may choose to have a replacement.

 

Feedback

 

1. Feedback is very important，we hope that you can contact us immediately before you give us neutral or negative feedback，so that we can try our best to make you satisfied. A negative feedback can not solve any problems if we don\'t know the matter.

2. When you receive the item and satisfied with the product， please leave us positive feedback and 5 scores DSR， we will be highly appreciated. On the other hand，your feedback can be used as the shopping-references to other buyers.