Pooltest 25 Photometer


The Pooltest 25 is Palintest’s top of the range pool photometer, covering the complete range of water testing parameters for professional pool and spa management.

  • Complete range of tests for water balance and disinfection control
  • Effective data management, with USB and Bluetooth, Pooltest 25 is compatible with the AquaPal App and Palintest Portal
  • Designed for simplicity, suitable for all users
  • Trusted technology, utilising the global standard DPD method, developed by our very own Dr Palin.

Waterproof, durable and versatile
Suitable for poolside use, Palintest photometers are known for their robust design. With the complete range of pool parameters, test for additional parameters without purchasing new hardware.

Protect pool users and pool infrastructure
The Pooltest 25 enables full disinfection and water balance control; to protect pool users and prevent scaling or corrosion of the pool.

Manage data across multiple platforms
The Pooltest 25 stores up to 1000 data sets for full traceability of results. Utilise Bluetooth to connect your devices and manage data via the Aqua Pal App and Palintest Portal.

Suitable for poolside use
Palintest photometers are waterproof certified to IP67. Choose the Standard or Engineers kit options to safely store and carry your photometer.


Instrument Type

Dual light source colorimeter offering direct-reading of pre‑programmed test calibrations, Absorbance and Transmittance

Peak Wavelengths

450 nm, 500 nm, 550 nm, 570 nm, 600 nm, 650 nm


± 1.0% T


320 x 240 pixel LCD with backlight and contrast adjustment for all light conditions

User Interface

On-screen prompts available in English, French, Spanish, German, Italian, Turkish and Mandarin (Chinese)

Size (W x L x H) and Weight

150 x 250 x 70 mm, 975g

IP Rating


Power Supply

3x 1.5V AA batteries (typically 40 hours), mains power delivered via USB port


Palintest Bluetooth SMART (4.0) profile and USB for data download, software upload

Memory Capacity

Up to 1000 data sets. Each data set includes date, time, sample ID, operator ID, method number, method name, result, units