Pool Photometer Test Kit - Digital Multi-Parameter

Digital pool photometer test kit with reagent tablets for laboratory-grade accuracy. Reads chlorine, pH, TA, CYA, calcium and combined chlorine to 0.01 unit precision.

• Lab-grade digital readout for 6 pool chemistry parameters.
• Eliminates colour-match guesswork from strips.
• Records readings to memory for trend logging.
• Battery-powered handheld unit for poolside use.
• Refill reagent tablets sold separately.

Sizes and prices

• Kit: £199.00

When you need it

• You manage a commercial or holiday let pool with regulator audits.
• Strip readings keep producing borderline values you cannot trust.
• You want quantitative records for a service log.
• Multiple pools need cross-comparison testing.
• Pool service businesses need a single reliable kit.

How to use

1. Switch on photometer; let warm-up complete.
2. Rinse and fill cell with pool water sample to fill line.
3. Add specified reagent tablet for parameter; crush and stir until dissolved.
4. Insert cell into photometer; press read.
5. Record digital readout; reset for next parameter.
6. Rinse cell with fresh water between tests; pat dry.

Dosing guide

One reagent tablet per parameter test. Refill tablets sold in 100-count tubs by parameter. Calibration solutions available separately.

• For Free chlorine test, add 1 DPD-1 tablet to reach Single reading.
• For Total chlorine test, add 1 DPD-3 tablet to reach Single reading.
• For pH test, add 1 phenol red tablet to reach Single reading.
• For Total alkalinity test, add 1 alkalinity tablet to reach Single reading.
• For Cyanuric acid test, add 1 melamine tablet to reach Single reading.

How it works

Handheld photometer with 525 nm LED source and CMOS detector, paired with DPD, phenol red and melamine reagent tablets for 6-parameter pool testing.

Each reagent develops a colour proportional to ion concentration. The photometer measures absorbance at the analytical wavelength and converts to concentration via a stored calibration curve. Output is digital, eliminating eye-match error.

Strips can mis-read by 20-30% under poor lighting; photometers read within 5%. For commercial pools where regulators may audit logs, the digital trail is essential.

Frequently asked questions

Which parameters does it cover?

Free chlorine, total chlorine, pH, total alkalinity, calcium hardness, cyanuric acid.

How accurate is it?

Within 5% of laboratory reference, far better than colour-match strips.

Battery life?

Around 1000 tests per fresh set of 2x AA batteries.

What's in the box?

Photometer, sample cell, starter pack of reagent tablets (10 of each parameter), instruction manual, carrying case.

Refill tablets sold separately?

Yes. 100-count tubs by parameter. Re-stocking is straightforward.

Strips or photometer?

Strips for daily speed; photometer for accuracy and audit trail. Many serious owners use both.

What is the wavelength?

525 nm LED, the analytical wavelength for DPD chlorine and most pool reagent chemistries.

How is it calibrated?

Factory calibrated; field calibration via reference standard solutions monthly recommended for service businesses.

Does it record readings?

Yes. Stores last 100 readings in memory for trend logging.

Reading unstable?

Clean cell; use fresh reagent; ensure full dissolution.

Calibration drift?

Recalibrate monthly with reference solution; replace cell if optical face is scratched.

Photometer vs strips?

Photometer is quantitative and audit-friendly; strips are colour-match and faster. Strips for daily, photometer for weekly verification.

Photometer vs liquid drop kit?

Photometer reads digital; liquid kit reads colour drops manually. Same accuracy class but photometer is faster and logs readings.