low coat ph meter / digitl ph meter /low price pen type ph meter / ph testing drops/ ph meter for Hydroponics
The instrument need recalibrate in the following condition.
1.Long time no use or use very long time after calibration
2.The electrode is used Very frequently.
3. The testing accuracy requirement is very high.
4.Press the "CAL" button long time in the air carelessly.
pH electrode maintenance
If the electrode placed long time, and electrode exposed to air,
then showing values is slow and not stable, because of electrode dry.
You should immerse the electrode into water for few hours.
When the display value is fuzzy or unshown , The battery should be replaced promptly.
Pay attention to the polarity of battery.
The instrument is warranted to the purchaser for a year from the date of purchase.
If during these periods, repair or replacement of the instrument is required,
please return the instrument to either your dealer or to our office.
The repair will be effected free of charge. ( damage is not due to negligence or erroneous operation by the user)
Note :Plese provide purchase invioce or proof before returning your instruments back .
Neutral carton package .
we can do OEM service .
we can print your logo on meters , leather bags and manual .
Also we can make different packing box for you if you do not like leather bag package
1. we have good after-sales service . we are online 24 hours .you can contact us any time if there has problem .
2. we can supply you picture modification service . our designer can modify picture for you according to your requirements
3.we can print logo on the ph meter for you .
4.we send 2 replacements ph meter every 100pcs for the buyer .
We have Iso-9001 certificate to control quality .
We have CE certificate