The SISCO handheld depth sounder is carefully designed. It comes with a dedicated carrying case, providing a waterproof depth of up to 50m, allowing you to measure safely even in deep-water conditions. The SM-5A model is further upgraded with an external transducer and a 3.6m cable, making it more versatile for different applications. The depth sounder's clear and intuitive display interface offers a wide measuring range, supports reading replay, and can hold measurement data on screen for up to 10 seconds, ensuring that you never miss any critical underwater information.
Dual Measurement Units and High Accuracy
- Freely Switch Units and High Accuracy: This portable depth sounder supports readings in both feet and meters, maintaining high precision even when measuring through solid shells, foamy surfaces, or thin ice layers, achieving accuracy close to 1/10 scale.
- Wide Depth Range: The depth sounder features a broad measuring range, spanning from 2ft to 260ft (0.6m to 79m). The external transducer head is equipped with a 3.6-meter cable, providing flexibility for various measurement needs.
- Smart Data Management: Moreover, the water depth gauge allows data replay of any previous reading, which can stay displayed on the screen for up to 10 seconds, enabling users to review important depth data anytime.
Customized Portable Design and Waterproof Protection
- Customized Portable Design: The SISCO handheld depth sounder is designed for easy carrying, featuring a lightweight and convenient carrying case, ideal for hiking, boating, or aerial transport.
- Waterproof Protection: The water measurement tool offers excellent waterproof performance, with a maximum waterproof depth of 50 meters, ensuring reliable use in different water environments.
- High-Frequency Detection: In addition, this deep sounder adopts a 200 kHz frequency, and the beam angle can be selected between 24° and 15° depending on the model, ensuring accurate and efficient depth measurement results.
Applications
In hydropower systems, the depth sounder precisely measures the water level and depth of reservoirs and dams to ensure safe operation. It rapidly maps seabed or lakebed topography for resource development and engineering planning. Determining exact depths enables accurate positioning of water sampling points at different layers. In river surveys, a depth sounder provides real-time depth profiles for analyzing channel changes and supporting flood control, navigation, and ecological protection.
Seabed Topography
Water Sampling
River Surveys
Hydropower Systems
| Model | SISCO-DS-SM-5 | SISCO-DS-SM-5A |
| Transducer Type | Built-in transducer | External transducer + 3.6m cable |
| Beam Angle | 24° | 15° |
| Acoustic Frequency | 200 kHz | |
| Depth Range | 2~260 ft (0.6~79 m) | |
| Reading Range | 2~260 ft (0.6~79 m) | |
| Waterproof Depth | Up to 50m | |
| Power Supply | Standard 9V dry battery | |
| Dimensions | 7.7×1.7 inch (19.8×4.2 cm) | |
| Color | Yellow | |
| Net Weight | 0.5kg | |
Details
Q1: What is the measuring principle of a portable depth sounder?
A1: The portable depth sounder operates based on the ultrasonic acoustic reflection principle. The water depth measurement tool uses a built-in transducer to emit high-frequency ultrasonic pulses underwater. When these sound waves encounter the bottom surface (such as sediment or rock), they are reflected to the transducer. The device then calculates the vertical distance between the water surface and the bottom by measuring the time difference between transmission and reception, using the known sound velocity in water (approximately 1500 m/s). For example, if the round-trip travel time of the sound wave is 0.2s, the depth is calculated as: Depth = (1500 m/s × 0.2 s) / 2 = 150M. Some advanced models also support multi-beam measurement, allowing simultaneous scanning in multiple directions to improve measurement coverage and efficiency.
Q2: What are the differences between the SM-5 and SM-5A models?
A2: The SM-5 model features a built-in transducer with a waterproof depth of 50m and a 24° beam angle. In contrast, the SM-5A version includes an external transducer with a 3.6m cable and a 15° optimized beam angle, offering greater flexibility and precision for professional underwater measurements.
Q3: Can I view or replay previous depth readings?
A3: Yes. The SISCO handheld depth sounder supports data replay for any previous reading. Measurement data can stay on the display screen for up to 10 seconds, allowing users to review and verify critical depth information easily, even after the measurement is completed.
Tips: How can I ensure accurate depth measurements in different water conditions?
- For the best results, make sure the transducer surface is fully submerged and free from air bubbles or debris.
- Avoid measuring through thick sediment or dense vegetation, as this can weaken the sonar signal.
- Regularly clean the probe and use the temperature compensation function when operating in environments with large temperature variations to maintain measurement accuracy.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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