Handheld Dissolved Oxygen Meter

$302.96 $212.00 SAVE 30%
Add to Wishlist

visamasteramazon paymentsamerican expressapple paypaypal
Description

This handheld, intelligent, portable water quality tester offers comprehensive monitoring of six key parameters: dissolved oxygen (DO), pH, TDS, EC, salinity (SALT), and temperature. With high-precision probes, a clear HD display, automatic temperature compensation (ATC), and a user-friendly interface, it's ideal for aquariums, aquaculture, swimming pools, drinking water testing, laboratories, and more.

Specs
  • Measurement Ranges:
    Dissolved Oxygen (DO): 0.00 - 20.00 mg/L; 0.0% - 200.0%
    pH: 0.00 - 14.00
    Salinity (SALT): 0 - 2000 ppm; 2.0 - 100.0 ppt
    EC (Electrical Conductivity): 0.0 - 1999 μS/cm; 2.0 - 200.0 mS/cm
    TDS (Total Dissolved Solids): 0 - 2000 ppm; 2.0 - 100.0 ppt
    Temperature: 0.0 - 80.0°C (32.0 - 176.0°F)
  • Temperature Compensation (ATC): 0.1 - 60°C
  • Display: HD Large-Screen LCD with Backlight
  • Probes: Independent probes for pH, DO, and EC; High-Sensitivity Sensors
  • Power: 4 x AAA 1.5V alkaline batteries
Applications
  1. Aquariums
  2. Swimming pools
  3. Hydroponics
  4. Laboratories
  5. Drinking water testing
  6. Aquaculture
Shipping & Returns

Shipping Policy

  • Orders are processed within 1-2 business days (excluding weekends and holidays).
  • Free shipping is available for the United States, select European countries, and various Asian regions, with a delivery timeframe of 7-20 business days.
  • Duties and taxes are not included and will be collected by the carrier at delivery.
  • Upon shipment, you’ll receive a tracking number via email for real-time updates.

Return Policy

  • We offer a 7-day return policy, starting from the day you receive your item.
  • Items must be unused, in their original condition with tags and packaging, and accompanied by proof of purchase.

Shipping Costs for Returns:

  • Quality Issues: We cover the return shipping costs.
  • Personal Reasons: Customers cover the return shipping costs.

Non-Returnable Items:

  • Used or worn products.
  • Sale/discounted/promotional items.
  • Gift cards.

Refund Process:

  • Refunds will be processed through your original payment method within 5-8 business days after approval.

Frequently Bought Together

Total price:$590.63 $427.75

Clear Multi-Parameter Readings at a Glance

The large digital display provides quick, simultaneous readings of pH, EC, TDS, and water temperature, making it perfect for managing greenhouse hydroponics and aquaculture tanks. With just one look, users can check if EC levels are within the optimal 1.8–2.4 mS/cm for leafy greens or if water temperature is balanced at 20–25°C for fish health, ensuring plants and aquatic life thrive. This feature eliminates the hassle of switching between tools or second-guessing unclear numbers.

Accurate Probes for Reliable Water Quality Control

Equipped with high-sensitivity probes for DO, pH, EC, and temperature, this tester ensures precise monitoring in both aquaculture ponds and hydroponic reservoirs. Stable dissolved oxygen levels of 5–8 mg/L and accurate salinity tracking help prevent fish stress and promote robust plant growth. By providing consistent and trustworthy data, growers can react quickly to water quality changes, solving the common issue of crop yield loss and fish mortality due to unnoticed parameter fluctuations.

Easy Electrode Connection for Stable Testing

Designed for greenhouse hydroponics and aquaculture systems, the secure electrode interface ensures sensors are firmly connected, reducing inaccurate readings caused by loose contacts. By keeping pH probes properly aligned, growers can easily maintain the ideal pH range of 5.5–6.5 for hydroponic vegetables, avoiding nutrient lockout and poor root absorption. This feature solves one of the biggest frustrations for growers—unstable measurements that affect plant growth cycles.

Optimal CO₂ Monitoring

Ensure stable and accurate CO₂ levels in autumn and winter greenhouses for healthier growth, stronger photosynthesis, and higher crop yields.

User-Friendly Interface

With a clear display and simple operation, our soil testers make monitoring soil conditions in greenhouses easy and efficient, even for beginners.

Durable & Reliable Design

Built with sturdy materials, our soil testers are perfectly suited for greenhouse environments, providing accurate measurements season after season to support healthy plant growth.

Q & A

How often should I test my hydroponic nutrient solution with the probe?

You should test every time you refill or top up the solution, and at least every 3 days in active growth phases. Frequent testing helps you catch pH drift or EC rise before it stresses plants.

What is the optimal pH range for hydroponic vegetables to maximize nutrient uptake?

For most leafy greens (lettuce, basil, etc.), the ideal pH is about 5.8–6.5. This range allows nutrients to dissolve properly and be absorbed by roots. If pH goes too high (>7.0) or low (<5.5), deficiencies or toxicities will occur.

What dissolved oxygen (DO) levels should I maintain in aquaculture ponds to prevent fish stress and mortality?

Keep DO above 5 mg/L to allow normal metabolism and avoid stress; levels around 2.5–4.5 mg/L lead to slight hypoxia; below ~2 mg/L can be severe risk. Use your tester frequently, especially during warm weather or overnight.

How do EC / TDS readings affect hydroponic growth, and what are ideal EC levels?

EC / TDS indicates how many nutrients / salts are dissolved. For many vegetable hydroponic crops, an EC in the range of 1.5–2.5 mS/cm (≈ 750–1250 ppm in some TDS scales) works well. Too high → root burn or nutrient lock, too low → nutrient deficiencies. Your multi-probe tool helps you monitor and adjust accordingly.

At what temperature should I keep hydroponic or aquaculture water for optimal growth?

For most hydroponic greens, water/nutrient solution around 20-25°C is ideal. For many warm-water fish / aquaculture species, keeping water between 22-28°C helps metabolic rate, oxygen solubility, and growth. Using the temperature probe & automatic compensation in your device avoids deviations from these ranges.

What should I do if I detect too low dissolved oxygen or sudden drops?

Possible actions: increase aeration (air pumps, diffusers), reduce feeding load, reduce stocking density temporarily, do partial water changes, check water temperature (colder water holds more DO). Your device’s DO probe can help you detect the problem early so you can act before fish show stress (e.g. gasping at surface).

Superior Quality

Certified products with high precision, rigorously tested for reliability.

Global Reach

Trusted by clients across Europe, America, Asia, and the Middle East.

Innovative R&D

Cutting-edge products developed through continuous research and unique patents.

Customer-Centric Service

Tailored support with fast, efficient global delivery.