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... >99.9% Noise value <47dB(A) Heat exchange rate Compatible with GB21087 standards Control mode Intelligent operation/touch control/remote control/mobile APP Applicable space 175m³ (calculated at 2 air changes per hour) Product Attributes Attribute...
... water meter Changde brand Ultrasonic water meter is a kind of pure electronic water meter which can calculate the flow rate of water according to the time difference analysis process by detecting the time d...