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YSI
YSI 900 Chlorine Colorimeter
Quote on request
No online payment · add lines to RFQ BOM
900: free 0.02–2.0 / total 0.1–8.0 mg/L DPD; IP68; 530 nm. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
Photometric accuracy about 3% FS (20-25 C); wavelength accuracy +/-1 nm
Display
Backlit LCD
Type
Single-parameter portable chlorine colorimeter (YSI 900)
Free Chlorine
0.02 to 2.0 mg/L DPD free chlorine at 530 nm
Total Chlorine
0.1 to 8.0 mg/L DPD total chlorine at 530 nm
Enclosure
IP68 (1 h at 0.1 m); floats; CE
Fits field free and total chlorine testing where you need a YSI 900—DPD colorimeter covering free chlorine 0.02–2.0 mg/L and total chlorine 0.1–8.0 mg/L at 530 nm in an IP68 floating package.
Key advantages
- Free Cl2 — 0.02–2.0 mg/L DPD at 530 nm
- Total Cl2 — 0.1–8.0 mg/L DPD at 530 nm
- Accuracy — Photometric ~3% FS (20–25 °C); λ ±1 nm
- Package — IP68 (1 h at 0.1 m); floats; CE
- Form — Single-parameter portable colorimeter
Typical applications
- Drinking water chlorine checks.
- Pool / spa free/total Cl2.
- Field compliance spot tests.
Selection guide
- Reagent kits
- Vials / standards
- Carry case
Common mistakes
- Expired DPD reagents.
- Dirty vials skewing blanks.
- Outside temperature accuracy band.
When to RFQ / what to tell us
- Reagents, quantity.
- Ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 39039 |
| Brand | YSI |
| Model | 900 Chlorine Colorimeter |
| Product type | Chlorine Colorimeter |
| Type | Single-parameter portable chlorine colorimeter (YSI 900) |
| Free chlorine | 0.02 to 2.0 mg/L DPD free chlorine at 530 nm |
| Total chlorine | 0.1 to 8.0 mg/L DPD total chlorine at 530 nm |
| Accuracy | Photometric accuracy about 3% FS (20-25 C); wavelength accuracy +/-1 nm |
| Enclosure | IP68 (1 h at 0.1 m); floats; CE |
Documents
FAQ
Q: Free chlorine range? A: 0.02–2.0 mg/L.
Q: IP rating? A: IP68; instrument floats.
Q: What should I send for a quote? A: Reagents/quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | Photometric accuracy about 3% FS (20-25 C); wavelength accuracy +/-1 nm |
| Display | Backlit LCD |
| Type | Single-parameter portable chlorine colorimeter (YSI 900) |
| Free Chlorine | 0.02 to 2.0 mg/L DPD free chlorine at 530 nm |
| Total Chlorine | 0.1 to 8.0 mg/L DPD total chlorine at 530 nm |
| Enclosure | IP68 (1 h at 0.1 m); floats; CE |
| Memory | 16 data sets with date/time stamp; optional IR Data Hub export |
| Power | 4 alkaline AAA; about 17 continuous hours or 5000 tests |
| Size Weight | 15.5 x 7.5 x 3.8 cm; 260 g |
| Document | YSI W900-2 Chlorine Colorimeter Specification Sheet |