Compare DDS20, DDS45 and DDS75 Distance Sensors
Compare IoT hardware for South African projects.
How do DDS20, DDS45 and DDS75 distance sensors differ?
DDS20, DDS45 and DDS75 are ultrasonic distance-sensing product lines. DDS20 is for non-contact liquid-level measurement through a container over 20mm to 2000mm. DDS45 and DDS75 measure distance to a flat object, with ranges of 30mm to 4500mm and 280mm to 7500mm respectively.
What should I compare?
- Choose DDS20 when the measurement is liquid level through a container without contacting the liquid.
- Choose between DDS45 and DDS75 by the flat-object range and measurement angle required: 30mm to 4500mm at 60° for DDS45, or 280mm to 7500mm at 40° for DDS75.
- Compare the connectivity shown for the exact SKU, including LoRaWAN and LTE CAT 1 variants.
- For LB and LS variants, compare the exact power entry: 8500mAh for LB or solar panel plus 3000mAh Li-ion battery for LS.
- Confirm the target or container arrangement, required range, regional connectivity variant, and exact SKU before ordering.
How do the options differ?
DDS20 measures liquid level through a container without contacting the liquid. DDS45 and DDS75 measure distance to a flat object. DDS45 covers the shorter 30mm to 4500mm range with a 60° angle, while DDS75 covers 280mm to 7500mm with a 40° angle. Connectivity and power options vary by exact SKU.
A practical decision path
- Identify whether the project measures liquid level through a container or distance to a flat object.
- For flat-object measurement, compare the required range and angle against the DDS45 and DDS75 product details.
- Select the exact connectivity and power variant, then confirm the full product details before ordering.
Compare products
View up to 6 products for this guide.
| Compare | DDS75-LB | DDS75-LS | DDS45-LB | DDS45-LS | DDS20-LB | DDS20-LS |
|---|---|---|---|---|---|---|
| Primary function | Distance Sensor | Distance Sensor | Distance Sensor | Distance Sensor | Distance Sensor | Distance Sensor |
| Connectivity | LoRaWAN | LoRaWAN | LoRaWAN | LoRaWAN | LoRaWAN | LoRaWAN |
| Power | 8500 mAh battery | a solar panel and 3000 mAh Li-ion battery | 8500 mAh battery | a solar panel and 3000 mAh Li-ion battery | 8500 mAh battery | a solar panel and 3000 mAh Li-ion battery |
| Sensor or probe arrangement | ultrasonic sensing | ultrasonic sensing | ultrasonic sensing | ultrasonic sensing | ultrasonic sensing | ultrasonic sensing |
| Measurement range | distance: 280 to 7500 mm | distance: 280 to 7500 mm | distance: 30 to 4500 mm | distance: 30 to 4500 mm | level: 20 to 2000 mm | level: 20 to 2000 mm |
| Price | R 1 961,36 | R 2 174,52 | R 1 833,32 | R 2 046,48 | R 1 769,30 | R 1 982,70 |
What should I do next?
Move from this decision guide to the most relevant application, family, comparison or enquiry path.