Seachem pH Alert

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pH alert is a simple and effective device which can be placed in the aquarium or filter, and will monitor pH levels continuously. A sensor changes colour from yellow, to orange to red, alerting you to shifts in between 5.4 and 8.0. Freshwater use only.DirectionsSimply place inside the aquarium or filter by the suction cup provided. When first placed in the aquarium, response time will be about 30 minutes, thereafter pH shifts will register within ten minutes.CareNo care is required beyond removing algae with a clean, soft material. Do not use bleach, soap, detergents or hard objects to clean the sensor. Some dye medications may discolour the sensor. For maximum sensitivity, the unit should be read under natural daylight or daylight simulating light. Sensor exhaustion is indicated by a visible fading or washing out of sensor colour. Once exhausted, it is time to replace pH Alert. Show more