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You can use the HYDROS Water Level Sensor in a multitude of different ways
The way it works is easy: just place the sensor inside your aquarium or sump
The AIO (All‑In‑One) series offers a compact
preventing potential damage and loss
you can direct the flow where your tank needs it most
Nitrate High Range Colorimeter HI782 - Marine Water leak You can use the HYDROSThe HI782 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the zinc reduction method to determine nitrate concentration in marine applications. With a digital read out, there is no more struggling to determine colors visually. The HI782`s high range of 0. 0 75. 0 ppm makes it ideal for measuring high nitrate levels found in saltwater aquariums. Features Designed to accurately determine nitrate levels in