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FiT178-FC专业酒精测试仪 FiT178-FC FiT158-FC 1.显示:: 两位小数点后数字显示 2.键盘 3 键简单操作;ON/OFF 3.Power Supply 3 * AAA battery (FiT178-FC) 3.7V Rechargeable battery (FiT158-FC) 4. Storage environment -20 Degree C to +65 Degree C. 5. Operating Temperature : From 5℃ to +40 ℃, for optimum operation 6. Dimension 107 * 45 * 20 mm 7. Measurement precision: Standard deviation +/–0.03 mg/L or +/–10 % at alert point Drift: typically < 1.0 % of the measurement value/month