pH electrode reading and logging via EID's universal serial bus (EUSB) is an educational electronics kit. It allows you to connect your personal computer (PC) universal serial port (USB) to the kit on one side, and pH electrode on the other side. Together with the our free (AS-IS) demo software, you will be able to read and log to file pH measurements. Additionally, you will be able to set the log intervals, and log the information to file. Our sophisticated software logging Dynamic Data Exchange (DDE) mechanism allows you to open the logged file with another program, such as spreadsheet (MS-Excel etc.), at the same time. Therefore, you will be able to easily share the file, view it from anywhere on the web, and print report or graph from your familiar existing software packages.




The on board 12-bits ADC component has a built-in reference voltage and internal clock. The device controlled via 2 wires, Clock and Data (I2C protocol). 


The kit is based on Cypress integrated circuit (IC), the CY7C63001.


Note: The CY7C63001 IC is Universal Serial Bus (USB) RISC type Micro-controller. It conforms to USB 1.5 Mbps specification, version 1.1. See USB specifications at for more details, or click here to download the the CY7C63001 chip data-sheet.


No need for external Power supply! The board is powered directly from your PC.


Kit mounting option #1.  Two electrodes pH and TC (temperature)


This kit includes on board pre-installed free EUSB firmware!




Shown above mounted in plastic enclosure (EID-1593 series).


This unique kit design provides you with the ability to connect your electrodes easily via front mounted BNC (2). You will be able to monitor pH with ATC directly from the PC.


Please note: EUSB wire (USB cable), plastic enclosure electrodes are sold separately (for demonstration only).



Kit mounting option #2. One electrode (combo electrode pH +TC)




This kit includes on board pre-installed free EUSB firmware






Shown above mounted in plastic enclosure (EID-1593 series).


This unique kit design provides you with the ability to connect your electrode easily via front mounted BNC (2). You will be able to monitor pH with ATC directly from the PC.


Please note: EUSB wire (USB cable), plastic enclosure electrode are sold separately (for demonstration only).



Kit Software



pH Kit main screen shot (shown above) 




Simple to use. Control EUSB-kits directly from your personal computer (PC). 

Our philosophy is that "NO KID or SCIENTIST WILL BE LEFT BEHIND!"


Click here to download the free demo software code for Win98/98SE/ME/WinNT/2000/XP operating system. (Win98/SE/ME,2000, NT or XP are trademarks of Microsoft Corp.)


Please be advised, the demo software is provided for free, on as-is basis, without any warranties. Run or download it on your own risk!


All you need to do is plug-in the kit via EUSB cable to your PC, run the free demo software, and viola, log and  read pH values with Automatic Temperature Compensation (ATC). 



Kit Includes

  • CY7C63001          IC                  1pc.

  • MAX1236             IC                  1pc.

  • 7.5K Ohms           Resistor          1pc.

  • 2.4K Ohms           Resistor          1pc.

  • 0.1MF                 Capacitor        7pc.

  • 2P Terminal Block  Connector       1pc. 

  • 3P Terminal Block  Connector       1pc. 

  • 4.7MF                 Capacitor        1pc.

  • Red LED              LED                1pc.

  • USB Connector                          1pc.

  • Crystal 6MZ                              1pc.

  • PCB                                         1pc.

pH electrode options.


Our pH electrodes are a hand crafted, precision analytical device. Carefully follow the step by step (main screen instruction buttons) directions, so as to obtain the optimum performance and ensure the longest electrode life.  



Basic Required equipment and solutions:


1. EUSB-pH meter (a temperature compensator is recommended for optimum pH measurement accuracy) 


2. pH Buffer 4.01


3. pH Buffer 7.00


4. pH Buffer 10.01 (This additional buffer is recommended for the highest degree of accuracy utilizing three point calibration) 


5. Reference filling solution (See list for particular pH electrode type) 


6. Wash bottle filled with distilled or de-ionized water


7. Laboratory magnetic stirrer and magnetic stir protected magnetic bars


8. Lab lint free wipes 


9. Clean beakers  



Thermistor Temperature Probes options


For our big selection of conductivity cells click hear


We can custom the probe to fit your needs. Choose from SS, glass or plastic temperature electrodes (probes).




SENSER - General Purpose Temperature Sensor (GTM10) With 10K Thermistor




Description and SKU#



pH or ISE or ORP and Temperature via EUSB Kit

EID-K-EUSB-PHTC-ASM Fully assembled

EID-K-EUS-BS-LIB1S  Software (Library only)






ELECTRODER-GPH COMBO, with 10K ohms @25C ohms thermistor







EID-E-GPH-A001 for Single junction



SENSER-TM10 General purpose SS sensor with 10K thermistor






EUSB A to B Cables

This cable is used to connect the EUSB port to the EUSB peripheral. A male to B male.


EID-C-USB-32-930  3

EID-C-USB-32-931  6

EID-C-USB-32-932  10

EID-C-USB-32-933  15 










USB Complete (Second Edition) by J. Alexson

EID-K-BOOK-USB-001  Regular price 

EID-K-BOOK-USB-0KC  w/ kit purchase 


NEW! We carry technical books...



This is a "must have" book for any student or engineer. Therefore, an additional 10% off for student with student ID!