HI 96733 Ammonia Portabel Photometer HR

Range 0.0 to 50.0 mg/ L ( ppm) Resolution 0.1 mg/ L Accuracy ± 0.5 mg/ L ± 5% of reading @ 25° C Light Source Tungsten Lamp Light Detection silicon photocell with narrow band interference filter @ 420 nm Power Supply 9V battery Environment 0 to 50° C ( 32 to 122° F) ; RH max 95% non-condensing Dimensions 192 x 104 x 69 mm ( 7.6 x 4.1 x 2.7" ) Weight 360 g ( 12.7 oz.) Method adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method