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Product model QH-A1 Working voltage 3-18V DC Flow characteristics and accuracy (6*Q)±10Water pressure resistance ≤1.75Mpa Medium fluid temperature 0-60℃ (under non freezing conditions） Connection line mode Red power +, black power -, pulse signal line
Product model QH-B8 Working voltage 3-18V DC Pulse quantity and precision (300 pulse / liter) + 10Water pressure resistance ≤1.75Mpa Medium fluid temperature0-80 C (under non freezing conditions)Connection line mode Red power +, black power -, pulse signal line
Product model QH-03working voltage 3-18V DC Flow characteristics and accuracy (8.1*Q-3)±10Water pressure resistance ≤1.75Mpa Medium fluid temperature 0-60 C (under non freezing conditions) Connection line mode Red power +, black power -, pulse signal line