Hanna HI749 精巧型低量程六价铬（Cr）浓度测定仪（0 - 300 ppb）

Range: 0 - 300 ppb
Resolution: 1 ppb
Accuracy: ±3 ppb ±5%
Light source: LED @ 525 nm
Light Detector: Silicon photocell
Method: Adaptaion of the ATSM, Manual of Water and Enviornmental Technology, D 1687-92, Diphenylcarbohydrazide method
Environment:0 - 50°C
Battery Type: (1) PIN 1.5V AAA
Auto-off: After ten minutes of non-use
Dimensions: 81.5mm x 61mm x 37.5mm 
Weight: 64g
Ordering Information: HI749 Checker® is supplied with (2) sample cuvettes with caps, chromium VI LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
 

Option: HI749-11 Chromium Low Range Checker HC® Calibration Check Set, HI749-25 Chromium Low Range Checker Reagents, HI731318 Microfiber Cloth for Wiping Cuvettes (4)