Compact Chlorometer Duo

  • Chlorometer Duo kit, soft case (PTS027)
  • Chlorometer Duo kit, hard case (PTH027)

Whether testing drinking water compliance using the DPD method or measuring higher levels of chlorine concentration for process applications via the Chlorine HR method, the Compact Chlorometer Duo provides both:

  • Simple operation – blank or measure with a single button
  • Waterproof and battery powered – ideal for field use
  • Measure chlorine up to 250 mg/l on one meter.
Compact Chlorometer Duo


Measuring System Dual LED source, direct-reading colorimeter
Ranges 0 to 5 mg/L chlorine and 1 to 250 mg/L chlorine
Display High clarity LCD with backlight
User Interface Blank, read, function and power keys
Data Storage Last 10 results
Size (W x L x H) 65 x 150 x 40 mm
Weight 200g (including batteries)
Power Supply 2 x AA batteries


Select a consumable type to view details and download the related instruction and safety sheet documents for consumables


NDF Check Standards for Compact Chlorometer Duo

Neutral Density Filter check standards for field validation of the Chlorometer Duo. Supplied in a hard case with certificate

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Additional Information

Ordering Code Contents
Compact Chlorometer Duo kit, comprising: cuvettes (x2), cuvette brush, crush/stirring rods,
tests for free and total chlorine (standard range, x20), tests for chlorine
(high range, x20) and instructions. Supplied in a soft case with belt loop.
PTH027 Compact Chlorometer Duo kit, comprising: cuvettes (x4), cuvette brush, crush/stirring rods,
tests for free and total chlorine (standard range, x100), tests for chlorine
(high range, x100) and instructions. Supplied in a hard case.

Instructions & Brochures

Compact Photometers Brochure

Download the brochure to view the full range of single parameter photometers in this product line, together with the list of consumables and accessories.


Maintenance and Servicing Guide

Maintenance and Servicing Guide for Single and Multiparameter Photometers


User Manual

Download step-by-step instructions for operating the Chlorometer Duo.


Research & Insights

Calibrating Palintest Photometers

Palintest calibrate photometers using certified colour standards that are traceable back to National Physical Laboratory (NPL) standards.


Testing free chlorine when superchlorinating

In some applications, like fresh produce washing, regulations stipulate that free chlorine must be applied to the water at a concentration greater than 50mg/l.


Water Testing in Renal Dialysis

Chloramine testing of water used for haemodialysis is mandatory as prescribed in ISO 13959:2014. The standard refers to testing for total chlorine, however understanding the difference between free chlorine and combined chlorine can help when making the decision as to which test method to use.