- Shenzhen Isweek Ltd.
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Shenzhen, Guangdong, China
- Main products: Gas Sensor, UV Sensor, Humidity Sensor, Pressure Sensor, Ultrasonic Sensor, Wind Speed sensor, Liquid Level Sensor
Home > Products > Water Quality Sensors > EZO-pH EZO pH Circuit
EZO-pH EZO pH Circuit
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Product Details
| Brand Name | Atlas Scientific | Place of Origin | United States | |
| Model Number | EZO-pH | Usage | Other, pH Sensor |
Product Description
EZO pH Circuit
EZO-pH EZO pH Circuit Operating principle
A pH (potential of Hydrogen) probe measures the hydrogen ion activity in a liquid. At the tip of a pH probe is a glass membrane. This glass membrane permits hydrogen ions from the liquid being measured to defuse into the outer layer of the glass, while larger ions remain in the solution. The difference in the concentration of hydrogen ions (outside the probe vs. inside the probe) creates a VERY small current. This current is proportional to the concentration of hydrogen ions in the liquid being measured.
EZO-pH EZO pH Circuit Dimensions
EZO-pH EZO pH Circuit Power consumption
| LED | MAX | STANDBY | SLEEP | |
| 5V | ON | 18.3 mA | 16 mA | 1.16 mA |
| OFF | 13.8 mA | 13.8 mA | ||
| 3.3V | ON | 14.5 mA | 13.9 mA | 0.995 mA |
| OFF | 13.3 mA | 13.3 mA |
EZO-pH EZO pH Circuit Absolute max ratings
| Parameter | MIN | YP | MAX |
| Storage temperature (EZO? pH) | -65 °C | 125 °C | |
| Operational temperature (EZO? pH) | -40 °C | 25 °C | 85 °C |
| VCC | 3.3V | 5V | 5.5V |
EZO-pH EZO pH Circuit Specifications
| Reads | pH |
| Range | 0.001 - 14.000 |
| Accuracy | +/- 0.002 |
| Max rate | 1 reading per sec |
| Supported probes | Any type & brand |
| Calibration | 1, 2, 3 point |
| Temp compensation | Yes |
| Data protocol | UART & I2C |
| Default I2C address | 99 (0x63) |
| Operating voltage | 3.3V - 5V |
| Data format | ASCII |
| Circuit dimensions | 13.97mm x 20.16mm (0.55" x 0.79") |
| Weight | 1.76 grams |
Contact Us
- Shenzhen Isweek Ltd.
- Contact nameMs Rita yu Chat Now
- Phone86-755-83289036
- Address16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan, Shenzhen, Guangdong
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