Review on 🐠 Jebao Doser 3.4 WiFi 4-Channel Auto Dosing Pump for Saltwater Reef Aquarium in White (Doser3.4) by Tamara Simms

Although this pump can be calibrated, calibration does not make it accurate. Some heads may not match, for example I have one that is below 20% of the calibrated value. Calibrated to 50ml for example and pumps 40. The other 3 heads only pump 45-44 out of the requested 50. The pump is cheap, convenient and works, although I don't know how reliable it is. Just make sure you calibrate it carefully before using it to see which heads are faulty. Use suitable measuring devices for this.