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Dip Strip Photometer for free and total chlorine
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
HHWT-11 Series
  • Dip Strip Photometer
  • 0.01 ppm (mg/L) Precision
  • No Visual Color Matching Required
  • Waterproof Meter NEMA 4X (IP67)
  • Automatic Countdown Test Timer
  • Simple 3-Button Control
  • Lightweight
 Manuals (contact with email : [email protected])


trodeks’s HHWT-11 is a handheldphotometer designed for direct read testingwater for free and total chlorine. TheHHWT-11 has been designed to offer theuser a more “green” and cost-effectivealternative to testing. Instead of using a10 ml water sample, it uses a 4 ml watersample, which uses up to 60% lesschemical per test. The easy to use dip stripmethod delivers the reagents to thesample safely and takes the guesswork outof water testing. The HHWT-11 alsofeatures a transmission mode which allowsusers to develop custom conversion chartsusing general tablet and power methods.

Measurement Method: Photometric
Light Source: Light emitting diode (LED)
Wavelength: 525 nm
Memory: 20 tests per menu; 140 total
Programmed Tests: Bromine (DPD-1), Chlorine Dioxide (DPD-1), Free Chlorine (DPD-1), Total Chlorine (DPD-3 and DPD-4), High Range Free Chlorine, Low Range Hydrogen Peroxide, Ozone, and Peracetic Acid (DPD-4)
Transmission Range: 100 to 0.00%T
Photometric Precision: ±0.1/0.01%T
Automatic Range Selection: Displays 0.01 or 0.1 resolution automatically
Display: 3-digit customized LCD with annunciators
Cell Pathlength: 20 mm (0.78")
Sample Required: 4 ml (0.13 oz)
Reagent System: Utilizes strip reagent delivery system
Operating Temperature Range: 0 to 50°C (32 to 122°F)
Power Supply: 4 “AAA” alkaline batteries (included)
Battery Life: >2000 tests with alkaline batteries
Electromagnetic Compliance (EMC): Emitted Interference–EN 61326; immunity to interference–EN 61326
Waterproof Rating: NEMA 4X (IP67)
Weight: 140 g (5 oz)
Dimensions: 5 W x 3.5 D x 16.5 cm H (2 x 1.4 x 6.4")
Government Compliance: CE and USEPA compliance for free/total chlorine
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