Silica, High Range, Portable Photometer Cat.No. HI 96770

Description: CAL CHECK™ User calibration Certified calibration and verification standards BEPS ( Battery Error Prevention System) TIMER function Auto shut-off GLP Features Specification: Range 0 to 200 mg/ L ( as SiO2) Resolution 1 mg/ L Accuracy ± 1 mg/ L ± 5% of reading @ 25° C Light Source light emitting diode Light Detection Silicon Photocell with narrow band interference filter @ 466 nm. Method adaptation of the USEPA METHOD 370.1 for drinking, surface and saline waters, domestic and industrial wastes and Standard Method 4500-SiO2 C Environment 0 to 50° C ( 32 to 122° F) ; max 95% RH non-condensing Power Supply 9V battery Auto Shut-off after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder Dimensions 192 x 104 x 69 mm ( 7.6 x 4.1 x 2.7" ) Weight 360 g ( 12.7 oz.)