Secchi Disk – Water Transparency Measuring Instrument
A Secchi disk is an 8/10 inch disk with alternating black and white quadrants. It is lowered into the water of a lake until it can no longer be seen by the observer. This depth of disappearance, called the Secchi depth, is a measure of the transparency of the water
Original price was: ৳ 2,000.৳ 1,850Current price is: ৳ 1,850.
🌊 Secchi Disk – Water Transparency Measuring Instrument
Model: RTC-SD-01
Brand: RTC Dhaka
🧪 Product Overview
The Secchi Disk is a simple yet effective optical instrument used to measure the transparency or turbidity of water in lakes, rivers, reservoirs, and marine environments.
It provides a visual indication of water clarity based on the depth at which the disk disappears from view when lowered into the water.
This RTC Dhaka Secchi Disk is made from durable, corrosion-resistant materials and conforms to international hydrological and environmental testing standards.
⚙️ Key Features
-
✅ Made of non-corrosive metal or high-grade plastic.
-
✅ Standard black and white quadrant pattern for clear visibility underwater.
-
✅ Weighted bottom ensures vertical descent and stability in water.
-
✅ Calibrated rope or measuring tape for accurate depth reading.
-
✅ Easy to assemble, portable, and lightweight.
-
✅ Ideal for field and laboratory water testing.
-
✅ Complies with standard limnological methods.
📏 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | RTC-SD-01 |
| Disk Diameter | 20 cm (Standard) / Optional 30 cm |
| Material | Non-corrosive metal / PVC plastic |
| Color | Alternating black and white quadrants |
| Weight | 1.5 – 2 kg (approx.) |
| Rope Length | 20 – 30 meters (graduated in centimeters) |
| Rope Material | Nylon / Polyester |
| Depth Reading | Manual visual measurement |
| Standards | WHO / UNESCO / APHA guidelines |
| Brand | RTC Dhaka |
| Country of Origin | Bangladesh / Imported |
🧪 Purpose of Test
The Secchi Disk Test is performed to determine the transparency (clarity) of water.
The depth at which the disk disappears and reappears when viewed from the surface is known as the Secchi depth, an important indicator of water quality, plankton density, and light penetration.
🧰 Supplied Accessories
-
1 × Secchi Disk (20 cm diameter, with black and white pattern)
-
1 × Weighted Bottom Attachment
-
1 × Graduated Measuring Rope / Cord
-
1 × Carrying Case (optional)
🌍 Applications
-
Water Quality and Pollution Monitoring
-
Limnological and Oceanographic Studies
-
Environmental Science Laboratories
-
River, Lake, and Reservoir Research
-
Hydrological Fieldwork
-
Educational and Research Institutions
💡 Advantages
-
Simple, fast, and cost-effective method
-
Portable and easy to use in any water body
-
Reliable and repeatable transparency readings
-
Long-lasting, corrosion-resistant design
-
Suitable for both fresh and saltwater environments
📞 Order Now
Rahim Trading Corporation (RTC Dhaka)
📍 Swantex Bhaban, 9/I Motijheel C/A, Dhaka – 1000
📱 +8801831-016720
📧 rtcdhaka2013@gmail.com
🌐 www.rtcdhaka.com