Model: HI 96733Hãng sản xuất: HANNA - ÝRange 0.0 to 50.0 mg/L (ppm)Resolution 0.1 mg/LAccuracy ±0.5 mg/L ±5% of reading @ 25°CLight Source Tungsten LampLight Detection silicon photocell with narrow band interference filter @ 420 nmPower Supply 9V ...