A kind of monitoring cistern device, is to include: a main body, at least a filter layer, a water inlet, a discharge outlet, at least a sensor and a pedestal. The main body system is hollow, rectangular body structure； The what body interior is arranged in the filter layer, to place filter material； The what bottom part body is arranged in the water inlet and the discharge outlet； The what body interior is arranged in the sensor, to monitor water quality； The pedestal is arranged below the what main body. This creation system interferes the running of water quality sensor by sampling of drawing water to avoid biologies such as the algae of aquaculture pond, spiral shell, fishes, and then promotes the service life of water quality sensing precision and water quality sensor.一種監控水箱裝置，係包含：一主體、至少一過濾層、一進水口、一排水口、至少一感測器以及一底座。該主體係為中空矩形體結構；該過濾層設置於該主體內部，用以放置濾材；該進水口及該排水口設置於該主體底部；該感測器設置於該主體內部，用以監測水質；該底座設置於該主體下方。本創作係藉由抽水取樣，以避免養殖池的藻類、螺、魚等生物，干擾水質感測器的運作，進而提升水質感測精度以及水質感測器的使用壽命。
