Hanna HI781 Nitrate LR checker

Details

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 @ 77F (25C) /2.5 ppm 5 of calculated reading using dilution
• Light Source:LED @ 525 nm
• Light Detector:Silicon photocell
• Environment:0 to 50C (32 to 122F); 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