Monitor hydroponic nutrient levels or salinity in pools.
- Electrical Conductivity in Siemens (0.5 - 20.0 mS/cm)
- Total Dissolved Solids in PPM (250 - 10,000 PPM)
- Salinity in PSU (2 - 12 PSU)
- Temperature in Celsius/Fahrenheit (-55 - 125 C)
- Electrically Isolated
An electrically isolated I2C sensor device, a waterproof temperature sensor, and an electrical conductivity probe. It measures the conductivity of a solution and converts it into Siemens (S) total dissolved solids and salinity. The firmware allows for single or dual-point calibration with temperature compensation. There is a connector available to use a waterproof DS18B20 temperature sensor for temperature compensation.
The board uses the Qwiic Connect System for wiring, it’s an easy-to-use, polarized, push-to-fit connector. No more mistaken connections or soldering header pins. Adafruit calls these connectors STEMMA QT.
All boards have a conformal coating to help protect against moisture, corrosion, and short circuits.
You would use this sensor device if you want to easily add conductivity measurements to your device.
Any 2-electrode probe with a BNC connector and a cell constant of 1K can be attached to the device.
When different probes are connected to the same controlling device, they can cause interference. The environment also causes interference due to ground-loops or other electrical noise like pumps. Electrically isolating the probe can help to prevent these problems.
All μFire probe interfaces come with electrical isolation hardware which provides a stable, isolated power supply and I2C-bus between the sensor and your controlling device.
The board can be purchased by itself, conductivity probes are also available separately. A waterproof temperature sensor is highly recommended for accurate measurements.
The board by itself with one Qwiic wire. - $60.00
A DS18B20 temperature sensors enclosed in a waterproof housing. Measure from -55 to 125 C. It includes a convenient polarized connector and 1 meter of cable to easily attach it to uFire devices. - $7.00
Black platinized in a glass body, 1K with a BNC connector. - $40.00
Qwiic to Board - $1.50
Qwiic to Male - $1.50
Female to Qwiic - $1.50