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Zhengzhou Nanbei Instrument Equipment Co., Ltd.

Probe, Reference Probe, Comparative Reference Probe manufacturer / supplier in China, offering Laboratory Comparative Reference Probe for Ion Measurement, LED Optical 1000X Scanning Electron Microscope with Projector, Price of Inverted Digital Biological Digital Microscope and so on.

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Laboratory Comparative Reference Probe for Ion Measurement

FOB Price: US $23-59 / Piece
Min. Order: 50 Pieces
Min. Order FOB Price
50 Pieces US $23-59/ Piece
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Port: Shanghai, China
Production Capacity: 200000PCS Per Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: 232-01
  • Function: Over Voltage Protection
  • Name: Reference Probe
  • Salt Bridge Material: Caremic Core
  • Filling Solution: Saturated Kcl
  • Body Material: Glass
  • Application: Acts a Comparative Reference Electrode When Measur
  • Trademark: Nanbei
  • Specification: CE
  • HS Code: 9031809090
  • Cooling System: No
  • Materials: Glass
  • Temperature Range: 5-55c
  • Structure Type: Saturated Calomel Single Salt Bridge
  • Size: 5*50mm;12*120mm
  • Connector: BNC
  • Common Reference: Calomel Electrode, AG/Agcl Electrode
  • Transport Package: Export Standard Package
  • Origin: Zhengzhou, China
Product Description
Laboratory comparative reference probe for ion measurement

Temp range: 5-55ºC
Salt bridge material: Ceramic core
Housing material: glass

A reference electrode acts a comparative reference electrode when measure electrode potential.Common reference electrodes are calomel electrode,Ag/AgCl electrode,etc.Generally composes measuring electrode couple with ph indicating electrode,ISE and metal electrode;mainly used in measurement of ph value and ion concentration or potential titration analysis.

Applications of Reference Electrode:
[232-01] :
The most typical reference electrode that widely used,stable and reliable performance,poor performance when high temperature (more than 70C).The electrode constains Hg components,should be irresponsibly disposed.

The filling solution of the second salt bridge can be determined according to user demand;eg : When measure low chloride concentration,can add potassium nitrate to the second salt bridge,in order to prevent penetration of KCL from the first salt bridge to sample,so as to affect measuring result of chloride ion.

Specially matching with 6801 series sodium ISE.

Applications of other Reference electrode :
[C(K2SO4) Reference electrode]
Common use.This electrode does not contain chloride ion,is suitable for non-chlorine occasions.

[Ag/AgCl Reference electrode]
Widely used.Compared with calomel electrode,the service life of this electrode is short,but its material is environmental protection.

Techincal parameter :


Active component(mol/l)




Saturated KCI


Inserting plate


Saturated KCI


Inserting plate


Saturated KCI +
selective filling liquid


Inserting plate
(Double salt bridge)


3.0 KCl


Inserting plate


3.8 KCl


Inserting plate


3.8 KCl


Inserting plate


3.8 K2SO4


Inserting plate

Our service
Pre-sale service
² 24hours online to ensure quick response to customers' inquiry or online message;
² Guide customers to choose the best suitable machine model;
² Offer detailed specification and competitive prices;
Contract execution
² Machine production will be arranged strictly according to the contract;
² Machine photos will be sent to you for inspection during production;
² Send customs clearance documents by DHL;
² Update latest news after delivery and prepare customs clearance;
After-sale service
² 12 months warranty except for wear parts;
² Broken spare parts (except for wear parts) will be sent for free due to quality problems;
² In time response to customers technical problems;
² New products update for customers' reference

1. How can I choose the suitable one?
Dear customer, please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.
2. How can I pay?
Dear customer, we accept many payment term, such as T/T, Western Union…
3. When I receive it after pay?
Dear customer, normal models can be delivered with 5-7days, please contact us to check transport time to your address.
4. How to deliver?
Dear customer, we can send by Express, by Sea and by Air.
5. Is will be broken during transport?
Dear customer, please do not worry, we do standard export package. If  product broken during transportation,we will replace you new.
6. What should I do if I do not know how to use?
Dear customer, please do not worry, manual user will be sent together, our techincal engineer also can supply phone,vedio guidance. If need,we will supply oversea service on site.
7. What should I do if some parts broken?
Dear customer, please do not worry, we have 12months warranty and whole life maintenance.
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