Hanna

Hanna HI781 Nitrate LR checker

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  • Regular price $99.00


The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The Checker® is both accurate and affordable.

Specifications

  • Range: 0.0 to 5.0 ppm (as NO3-) / 0.0 to 50 ppm (calculated) using dilution
  • Resolution: 0.01 ppm
  • Precision: ±0.25 ppm ±2% of reading @ 77°F (25°C) / ±2.5 ppm ±5 of calculated reading using dilution
  • Light Source: LED @ 525 nm
  • Light Detector: Silicon photocell
  • Environment: 0 to 50°C (32 to 122°F); max 95% RH non-condensing
  • Battery Type: (1) 1.5V AAA
  • Auto-off: After 10 minutes of non-use and after read
  • Dimensions: 81.5 x 61 x 37.5 mm (3.4 x 2.4 x 1.5")
  • Weight: 64 g (2.25 oz.)
  • Method: Colorimetric method