1Double button lock readings， send leather， easy to carry
The use of the product:
1， remove the cap， open the ON switch;
2， put the pen into the test solution， the height of the solution shall not exceed 2cm;
3， the pen in the solution stirring， to be stable after reading (2-6 seconds)， the TDS value will be displayed on the screen， then press HOLD key lock value.
4， the use of water to dry on the pen head after cleaning with pure water， the pen cap can be back.
5， the use of precautions: to avoid the TDS pen soaked into the water， to avoid direct sunlight， away from the high temperature， to avoid the impact of weight and fall. 2
Do not arbitrarily adjust the instrument， the instrument has been calibrated before the factory， such as the case of large errors， showing the value of beating， showing the value of zero and other phenomena， should be immersed in the following parts of the instrument into the alcohol shaking a few， in order to clean the sensor.
[product parameters]
Measurement range: 0~9990ppm
(when the screen does not appear when the X10 tag， the range is 0-999ppm)
(measurement when the screen appears when the X10 tag， the range is 0-9990ppm)
(that is， when the measurement requires more than 999ppm， the screen will appear X10， then the measurement results X10 times， such as: 25X10， that is， 2500ppm
3Accuracy: + 2% (F.S)
Power supply: 2 * 1.5V
Automatic temperature compensation: 0 ~60
Operating temperature: 0 degrees ~50
Weight: 50 g
Outline dimension: 156mm * 30MM * 20MM
Application scope: pure water production and drinking， electroplating liquid， boiler water， water tank，
Cleanliness， photographic liquid， water of swimming pool， deep water， laboratory， aquaculture， family
The following test pen specifications:
] lightweight pocket， weight 50 grams， for today\`s market volume is the smallest， lightest portable TDS instrument， long 15.6 x width 3 * thick (2 cm).
- wide measuring range， capable of measuring 1-999PPM.
4The application of wide temperature to 0-60 degrees， 30 degrees below zero in storage.
The liquid crystal display window， large screen LCD waterproof design， easy viewing， durable
] long battery life， the cr1620 battery 1.5 2 particle can be used for more than 3 years， 10 minutes do not operate automatic shutdown function， to save battery.
5] design reasonable， pen electrode can be directly inserted into the measured measured in aqueous solution， the cap can also for the measured water solution container to use， very convenient.
The rapid measurement， due to the exquisite naked type sensors， 5 seconds to complete a measurement.
Error - high accuracy to + 2%， titanium alloy probe water high precision magnetic interference from water.
The automatic temperature compensation， can be automatically converted into value of 25 degrees of indication
The factors affecting the value of TDS test:
Water temperature: TDS pen can not be used for the measurement of high temperature water (e.g.， hot water)
Water flow rate: TDS pen can not be used to measure the larger water sloshing

671. 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.