Low, Medium, High, Ultra High RangeThe HI97106 is a waterproof portable photometer with an advanced optical system that uses a Light Emitting Diode and a narrow band interference filter for accurate, repeatable readings. The optical system is sealed from outside dust, dirt, and water.The meter uses an exclusive positive-locking system to ensure that the vials are placed into the holder in the same position every time.The HI97106 is a waterproof chemical oxygen demand portable photometer with an advanced optical system that uses a Light Emitting Diode and a narrow band interference filter for accurate, repeatable readings. The optical system is sealed from outside dust, dirt, and water.
