![Pooltest 25 Professional Plus Photometer](https://www.aquasource.com/wp-content/uploads/2018/03/Pooltest-25-Professional-Plus-Photometer.jpg)
Pooltest 25 Professional Plus Photometer
- New extended range DPD test: 0-10 ppm chlorine.
- Fully Waterproof with IP67 rating and it even floats.
- Features automatic wavelength and method selection, balanced water calculation on board, low cost per test and USB port for easy computer interface.