Free Chlorine Ultra Low Range Checker by Hanna Instruments
Features –
Small palm-size design
Accurate from +-4% of reading +-20ppb
Dedicated single parameter
Uses 1 x AAA battery
Auto Power Off 10 minutes
Built-in timer for timed reaction readings
The checker is supplied with 2 cuvettes and caps, reagent starter kit (6 sachets), 1 x AAA battery and instruction manual,and in its own nice little box
Specifications – Range – 0 to 500ppb
Resolution – 1ppb
Accuracy – +-4% of reading +-20ppb
Measurement Method –Colorimetric
Light source – LED @525nm
Light detector – Silicon photocell
Method – Adaptation of USEPA method 330.5, DPD method
Power supply – Battery x 1 AAA
Power Auto Off – 10 minutes of inactivity
Dimensions – 81.5 x 61 x 37.5mm
Weight – 64g
Conversion to mg/l below
1000ppb = 1mg/l
500ppb = 0.5mg/l
100ppb = 0.1mg/l
10ppb = 0.01mg/l