Biology
Biology Extension Bundle
This bundle expands on the Starter Bundle and includes an Optical Dissolved Oxygen Sensor, a Colorimeter, and more.
The Advanced Biology Extension Bundle includes a Wireless Optical Dissolved Oxygen Sensor, Wireless Weather Sensor, Wireless Colorimeter and Turbidity Sensor, Wireless Conductivity Sensor, and an EcoChamber.
https://www.pasco.com/products/bundles/biology/ps-7615#specs-panel