Hach DR300 Pocket Colorimeter, Chlorine and pH Measurement, Waterproof IP67, Backlit Display, Battery Operated, Ideal for Field Testing, Compatible with DPD Method, LPV445.97.12110
| Country | USA |
| Manufacturer | Carol Boyle |
| Binding | Kindle Edition |
| ReleaseDate | 2016-10-30 |
| Format | Kindle eBook |