# testo 405i Smart Probe Thermal Anemometer: specs and price

**Price (US):** $123.95 at testo.com (Aggregated 'starting from' price across 2+ US retailers per ShopSavvy's price-comparison tool; testo.com's own product page returned HTTP 429 (rate-limited) on repeated direct-fetch attempts during this session, so the manufacturer's own listed price could not be independently reconfirmed), as of 2026-08-09. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 6 anemometers we track it is #4 cheapest of 6; category median $81.
**Brand:** Testo

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $123.95 |
| Brand | Testo |
| Wind speed range ms | 0 to 30 m/s |
| Airflow cfm cmm | — |
| Velocity accuracy | ±(0.1 m/s + 5% of reading) below 2 m/s; ±(0.3 m/s + 5% of reading) 2-15 m/s |
| Sensor type | Hot-wire (thermal), foldable telescopic probe |
| Temperature range | 0 to 50 °C (32 to 122 °F) |
| Data hold logging | Hold/min/max/logging via Bluetooth-paired testo Smart App; no onboard display |
| Backlit display | No |

## Where it stands

At $124, the testo 405i Smart Probe Thermal Anemometer is #4 cheapest of the 6 anemometers we track, where the median is $85.

## Frequently asked questions

**How much does the testo 405i Smart Probe Thermal Anemometer cost?**

The testo 405i Smart Probe Thermal Anemometer has a US price of $123.95 (Aggregated 'starting from' price across 2+ US retailers per ShopSavvy's price-comparison tool; testo.com's own product page returned HTTP 429 (rate-limited) on repeated direct-fetch attempts during this session, so the manufacturer's own listed price could not be independently reconfirmed), as of 2026-08-09.

**How does the testo 405i Smart Probe Thermal Anemometer compare on price?**

At $124, the testo 405i Smart Probe Thermal Anemometer is #4 cheapest of the 6 anemometers we track, where the median is $85.

**What are the testo 405i Smart Probe Thermal Anemometer's key specs?**

testo 405i Smart Probe Thermal Anemometer (Testo): wind speed range ms 0 to 30 m/s, velocity accuracy ±(0.1 m/s + 5% of reading) below 2 m/s; ±(0.3 m/s + 5% of reading) 2-15 m/s, sensor type Hot-wire (thermal), foldable telescopic probe, temperature range 0 to 50 °C (32 to 122 °F), data hold logging Hold/min/max/logging via Bluetooth-paired testo Smart App; no onboard display. Full sourced spec sheet verified 2026-08-09.

Source: https://www.testo.com/en-US/testo-405i/p/0560-1405 (testo.com, accessed 2026-08-09)
Canonical: https://frontdeskreview.com/product/anemometers/testo-405i/
Cite: Per The Front Desk Review, the testo 405i Smart Probe Thermal Anemometer price of record was $123.95 as of 2026-08-09 — https://frontdeskreview.com/product/anemometers/testo-405i/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl