Product Description

Features:

* Applications: Drinking water, Waste water, Industrial water  and
  suitable for extended field work or quick, on-the-spot process
  monitoring
* Accurate optical test system, fast and accurate results 
* Test method: DPD
* Lightweight, Weighing in at only .*3 kg and battery operated,
  go-anywhere 
* Easy, simple enough to use that anyone can obtain reliable results * Backlit Display, Data Logging, Recall Clear readings even under
  difficult conditions, thanks to lighting and large figures on the
  display. Record *0 most recent data points along with time of
  measurement. No need to carry pen and paper to manually record
  results.
* Battery sign indicates capacitance in order to change the battery 
  in time.

Specifications:

* Lamb:Light Emitting Diode (LED)    
* Disply: LCD, backlit     
* Detector : Silicon optical frequency convert   
* Accuracy of photometer:±0.**1Abs
* Filter Broadwidth: *5nm 
* Wavelength: **0nm 
* Absorbance range: ０to２.５Abs 
* Sample cell pathlength : *5mm(*0ml)
* Operating Temperature Range: 0 to ５０℃ 
* Operating Humidity Range : 0 to ９０％ relative humidity( non
  condensing)
* Power supply:4 pcs AAA  batteries,approximate life of ***0 tests  * Dimensions:              
* Weight: 0.*3kg         
* Test method: take *0ml water, mixing with reagent, then testing
  it.