This topic addresses the requested 10–50 m selection question, but not every candidate reaches 50 m. Eliminate by real working distance first, then compare weight, enclosure, protection, interface and power.
TFS20-L is currently specified at 0.2–20 m, about 1.35 g and 3.3 V with UART and I²C, fitting payload-critical systems that provide their own structural protection.
Boundary: It has no enclosure, and low-reflectivity targets or strong ambient light reduce usable range; do not treat the 20 m headline as a guaranteed working distance in every site.
View productTFmini Plus provides 0.1–12 m single-point ranging, IP65 and several board-level interfaces for compact equipment whose real distance stays in the short-range band.
Boundary: It is not a 50 m candidate; level or dusty applications also need separate checks for target surface, contamination, cleaning and maintenance.
View productTF02-Pro is currently specified at 0.1–40 m, up to 1000 Hz and IP65 for tasks beyond 20 m that use UART, I²C or I/O.
Boundary: The 40 m figure is a specification boundary, not design margin for every target and environment; it is not native RS-485, so verify controller and cabling.
View productTF02-Pro-W is currently specified at 0.1–25 m, RS-485, 7–30 V and IP5X, making it a candidate for industrial level tasks needing a bus and dust-oriented enclosure.
Boundary: IP5X is not a waterproof claim; account for its roughly 90–92 g weight and up-to-4.8 W power in mounting, supply, cleaning and maintenance.
View product| Parameter | TFS20-L | TFmini Plus | TF02-Pro | TF02-Pro-W |
|---|---|---|---|---|
| Measuring range | 0.2 ~ 20 m | 0.1 ~ 12 m | 0.1 ~ 40 m | 0.1 ~ 25 m |
| Detecting accuracy | ± 6 cm (0.2 ~ 6 m), 1% (≥ 6 m) | ± 5 cm @ (0.1 ~ 5 m)± 1% @ (5 ~ 12 m) | ± 5 cm @ (0.1 ~5 m) ± 1% @(5 ~ 40 m) | ± 6 cm @ (0.1 ~ 6 m) ± 1% @ (6 ~ 25 m) |
| Frame rate | 0 / 20 / 50 / 100 / 250 Hz | 1 ~ 1000 Hz | 1 ~ 1000 Hz | 1 ~ 1000 Hz |
| Interface | UART, I²C | UART, I/O, I²C | UART, I/O, I²C | RS-485 |
| Protection | Without enclosure | IP65 | IP65 | IP5X |
| Dimensions | 21 mm × 15 mm × 7.87 mm | 35 mm × 18.5 mm × 21 mm | 69 mm × 41.5 mm × 26 mm | 85 mm × 59 mm × 43 mm |
| Power consumption | ≤ 0.43 W | 550 mW | ≤ 1 W | ≤ 4.8 W |
| Weight | ~ 1.35 g | 12 ± 1 g | 50 g | 90 ~ 92 g |
| Field of view | < 2° | 3.6° | 3° | 3° |
| Operating voltage | DC 3.3 ± 9% V | 5 ± 0.5 V | 5 ~ 12 V | DC 7 ~ 30 V |
