DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, with Box
The Hach DR300 Free and Total Chlorine Colorimeter offers reliable chlorine measurements with an easy-to-use interface and durable, waterproof design. Perfect for quick, reliable water quality testing.
The Hach DR300 Free and Total Chlorine Pocket Colorimeter is a portable and rugged Free and Total Chlorine photometer designed for portability and simplicity, that measures Free and Total Chlorine in water from 0.02 - 2.00 mg/L LR and 0.1 - 8.0 mg/L HR. With an IP67 waterproof rating, it’s built to endure harsh conditions. Its intuitive interface is easy to navigate and the larger, backlit display allows for easy reading in any environment.
The DR300 delivers accurate chlorine measurements across a broad range of levels. Ensure trustworthy results every time by using Hach reagents with Hach's EPA approved test methods.
Each DR300 is a single parameter colorimeter and is part of a broader family of instruments that cover 15 different parameters. Compact and durable, the DR300 is the ideal choice for water quality analysis wherever you go.
Please note that reagents are not included in the kit and need to be purchased separately.
Specifications
Technical Attributes
| Absorbance | 0 - 2.5 Abs |
| Data storage | Last 50 measurements |
| Detector | Silicon photodiode |
| Dimensions (H x W x D) | 34 mm x 69 mm x 157 mm |
| Display | LCD with backlight |
| Enclosure waterproof rating | IP67, waterproof at 1 m for 30 minutes |
| Measurement method | DPD |
| Measuring range | 0.02 - 2.00 mg/L Cl₂; 0.1 - 8.0 mg/L Cl₂ |
| Operating conditions | 0 - 50 °C; 0 - 90% relative humidity (non-condensing) |
| Parameter | Chlorine, LR/HR |
| Power supply | Four AAA alkaline batteries; approximate life is 5000 tests |
| Sample cell compatibility | 1 cm (10 mL), 25 mm (10 mL) |
| Source lamp | Light emitting diode (LED) |
| Special features | With Box |
| Spectral Bandwidth | 15 nm filter bandwidth |
| Warranty | 24 months |
| Wavelength | 528 ±2 nm |
| Weight | 0.25 kg |
| What's included? | Each DR300 Pocket Colorimeter comes as a ready-to-use kit in a sturdy custom carrying case (4660200), including batteries, sample cells (2427606), and a manual. Reagents have to be purchased separately. |
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.