Technical Indexes
1. Measuring range: PH value: 0~14.00pH; division value: 0.01pH
             Electric potential value: ±1999mV; division value: 0.1mV
                                  Temperature: 0~99.9ºC; division value: 0.1ºC
2. Range for automatic temperature compensation: 0~99.9ºC, with 25ºC as the reference temperature
3. Water sample tested: 0~99.9ºC,0.6Mpa
4. Automatic temperature compensation error of the electronic unit: ±0 03pH
5. Repeatability error of the electronic unit: ±0.02pH
6. Stability: ±0.02pH/24h
7. Input impedance: ≥1x1012Ω
8. Clock accuracy: ±1 minute/month
9. Isolated current output: 0~10mA(load <1 5kΩ), 4~20mA(load <750Ω)
10. Output current error: ≤±l%FS
11. The data storage capacity: 1 month (1 point/5 minutes)
12. High and low alarm relays: AC 220V, 3A
13. Communication interface: RS485 or 232 (optional)
14. Power supply: AC 220V±22V, 50Hz±1Hz
15. Protection grade: IP65
16. Overall dimension: 96*96 mm;
17. Weight: 1.0kg
18. Working conditions: ambient temperature: 0~60ºC; relative humidity <85%

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 , FedEx
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 , MoneyGram , 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.

If you have another question, pls feel free to contact us as below:
Contact: Louise Zhou
Tele: +86 021 33897320-8042
Mobile(WhatsApp):+86 15180184494
​​​​​​​Skype: louise02043