Dissolved Oxygen Meter | Digital DO Tester

Dissolved Oxygen Meter is the most important water quality monitoring instrument that a serious Nigerian fish farmer can own. While pH, temperature and ammonia all matter enormously to fish health, dissolved oxygen is the single most immediately life-threatening water quality parameter in fish farming. Fish can survive pH fluctuations and elevated ammonia for hours or even days, but oxygen depletion can kill fish within minutes to hours depending on severity. Without a reliable dissolved oxygen meter, you are farming with the most dangerous water quality threat completely invisible to you.

Every year, Nigerian fish farmers lose millions of naira worth of fish to oxygen depletion events that could have been prevented with timely monitoring and intervention. A sudden algae bloom crash overnight, a power outage that stops aerators, excessive organic waste decomposition, overstocking or a combination of factors can rapidly deplete dissolved oxygen to lethal levels, killing fish silently and invisibly until the farmer arrives in the morning to find dead fish.

The Dissolved Oxygen Meter changes this completely. With instant accurate DO readings available whenever you need them, you can monitor oxygen levels throughout the day and night, identify dangerous trends before they become fatal events and respond immediately with emergency aeration when levels approach critical thresholds.

Key features of Dissolved Oxygen Meter:

• Measures dissolved oxygen concentration in mg/L and percentage saturation simultaneously
• High precision measurement with accuracy of 0.1 mg/L for reliable water quality assessment
• Wide measurement range of 0 to 20 mg/L covering all aquaculture monitoring needs
• Automatic temperature compensation for accurate DO readings at any water temperature
• Large backlit digital LCD display for easy reading in outdoor and low light conditions
• Waterproof or splash-proof design suitable for outdoor fish farm environments
• Fast response time providing stable accurate readings within 60 to 120 seconds
• Membrane cap electrode that is easy to replace when response time slows
• Memory function storing multiple readings for trend monitoring and record keeping
• Audible alarm function alerting when DO drops below a user-set critical threshold
• Long battery life with automatic power-off to conserve battery during infrequent use
• Portable and lightweight for easy use across multiple ponds and tanks
• Complete with carrying case, electrolyte solution and spare membrane caps

Critical dissolved oxygen levels for fish farming:

Fish begin to show stress when dissolved oxygen drops below 5 mg/L. At 3 mg/L fish become severely stressed and stop feeding. At 2 mg/L or below, most fish species begin to die. The ideal dissolved oxygen level for catfish and tilapia is 5 to 8 mg/L. Monitoring with a DO meter and maintaining oxygen above 5 mg/L at all times is one of the most important practices in successful Nigerian fish farming.

How to use:

Allow the meter to warm up for at least 15 minutes before taking readings for accurate results. Submerge the membrane probe in your fish pond water ensuring gentle water movement around the probe tip. Wait for the reading to stabilize, typically 60 to 120 seconds, before recording. Take readings at different points and depths in the pond for a complete picture of oxygen distribution. Take readings at dawn when oxygen levels are typically at their lowest of the day to identify potential overnight depletion problems. Replace the membrane cap and replenish electrolyte solution according to the manufacturer’s schedule for continued accuracy.

Dissolved Oxygen Meter is the essential life-saving water quality monitoring instrument that every serious Nigerian fish farmer must have to prevent catastrophic oxygen depletion losses and manage their ponds with confidence. Order yours today from HTS Farms.