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UNI-T UT363 Wind Speed and Temperature Meter vs testo 405i Smart Probe Thermal Anemometer

A sourced, side-by-side comparison. testo 405i Smart Probe Thermal Anemometer is cheaper at $123.95. Every spec and price links to its source.

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec UNI-T UT363 Wind Speed and Temperature Meter testo 405i Smart Probe Thermal Anemometer
US price $123.95
BrandUNI-TTesto
Released
Wind speed range ms 0 to 30 m/s 0 to 30 m/s
Airflow cfm cmm
Velocity accuracy ±(5% of reading + 0.5 digit) ±(0.1 m/s + 5% of reading) below 2 m/s; ±(0.3 m/s + 5% of reading) 2-15 m/s
Sensor type Fixed rotating-vane head, typical of the UT36x series (not explicitly named on the manufacturer spec sheet) Hot-wire (thermal), foldable telescopic probe
Temperature range -10 to 50 °C (14 to 122 °F), ±2 °C / ±4 °F accuracy 0 to 50 °C (32 to 122 °F)
Data hold logging Data hold only; no onboard logging (the separate UT363BT variant adds Bluetooth transmission to the iENV app, still no SD storage) Hold/min/max/logging via Bluetooth-paired testo Smart App; no onboard display
Backlit display Yes No

Sources — UNI-T UT363 Wind Speed and Temperature Meter: meters.uni-trend.com (verified 2026-08-09). testo 405i Smart Probe Thermal Anemometer: testo.com (verified 2026-08-09).

What's the difference between the UNI-T UT363 Wind Speed and Temperature Meter and testo 405i Smart Probe Thermal Anemometer?

Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.

  • Velocity accuracy: UNI-T UT363 Wind Speed and Temperature Meter ±(5% of reading + 0.5 digit) vs testo 405i Smart Probe Thermal Anemometer ±(0.1 m/s + 5% of reading) below 2 m/s; ±(0.3 m/s + 5% of reading) 2-15 m/s
  • Sensor type: UNI-T UT363 Wind Speed and Temperature Meter Fixed rotating-vane head, typical of the UT36x series (not explicitly named on the manufacturer spec sheet) vs testo 405i Smart Probe Thermal Anemometer Hot-wire (thermal), foldable telescopic probe
  • Temperature range: UNI-T UT363 Wind Speed and Temperature Meter -10 to 50 °C (14 to 122 °F), ±2 °C / ±4 °F accuracy vs testo 405i Smart Probe Thermal Anemometer 0 to 50 °C (32 to 122 °F)
  • Data hold logging: UNI-T UT363 Wind Speed and Temperature Meter Data hold only; no onboard logging (the separate UT363BT variant adds Bluetooth transmission to the iENV app, still no SD storage) vs testo 405i Smart Probe Thermal Anemometer Hold/min/max/logging via Bluetooth-paired testo Smart App; no onboard display
  • Backlit display: UNI-T UT363 Wind Speed and Temperature Meter true vs testo 405i Smart Probe Thermal Anemometer false

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