- RS Stock No. 176-5593
- Mfr. Part No. 0635 9372
| Testo | Air Velocity, Temperature, Volume Air Flow | Flügelrad-Sonde, Ø 100 mm | 15m/s | ±1.5% + 0.1 m/s | 0.01m/s | Rotary Vane | +70°C | 0.1°C | ±0.5 °C | - | - | - | 375 x 105 x 46mm | 360g | testo 440, testo 440 dP | 46mm |
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- RS Stock No. 255-9517
- Mfr. Part No. 0563 1417
| Testo | Air Velocity, Temperature, Volume Flow | 417 Set 1 | 20m/s | ±1.5% + 0.1 m/s | 0.01m/s | Vane | +50°C | 0.1°C | ±0.5 °C | Battery | AA | 50 h | 570 x 450 x 420mm | 4700g | - | 420mm |
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- RS Stock No. 292-329
- Mfr. Part No. 0560 4101
| Testo | Air Velocity, Temperature | Testo 410-1 | 20m/s | ±2% + 0.2 m/s | 0.1m/s | NTC, Rotary Vane | +50°C | 0.1°C | ±0.5 °C | Battery | AAA x 2 | 100 h | 133 x 46 x 25mm | 110g | - | 25mm |
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- RS Stock No. 255-9513
- Mfr. Part No. 0563 0425
| Testo | Air Velocity, Temperature, Volume Flow | 425 | 30m/s | ±5% + 0.5 m/s | 0.01m/s | Telescopic Vane | +70°C | 0.1°C | ±0.5 °C | Battery | AA | 35 h | 135 x 60 x 28mm | 268g | - | 28mm |
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- RS Stock No. 255-9511
- Mfr. Part No. 0563 0416
| Testo | Volume Air Flow | 416 | 40m/s | ±1% + 0.2 m/s | 0.1m/s | Telescopic Vane | - | - | - | Battery | AA | 60 h | 135 x 60 x 28mm | 323g | - | 28mm |
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- RS Stock No. 227-826
- Mfr. Part No. 0560 4053
| Testo | Air Velocity, Temperature, Volume Air Flow | Testo 405 | 10m/s | ±5% + 0.3 m/s | 0.01m/s | NTC, Thermal | +50°C | 0.1°C | ±0.5 °C | Battery | AAA x 3 | 20 h | 490 x 37 x 36mm | 115g | - | 36mm |
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- RS Stock No. 255-9512
- Mfr. Part No. 0563 0417
| Testo | Air Velocity, Temperature, Volume Flow | 417 | 20m/s | ±1.5% + 0.1 m/s | 0.01m/s | Vane | +50°C | 0.1°C | ±0,5 °C | Battery | AA | 50 h | 236 x 108 x 45mm | 243g | - | 45mm |
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- RS Stock No. 176-5574
- Mfr. Part No. 0563 4404
| Testo | Humidity, Temperature | 440 Humidity Kit with Bluetooth | - | - | - | Humidity, NTC, TC | +1370 (Temperature-TC) °C, +150 (Temperature-NTC) °C | 0.1°C | ±0.3 (-25 → +74.9 °C) °C, ±0.4 (+75 → +99.9 °C) °C, ±0.4 (-40 → -25.1 °C) °C, ±0.5 % | Battery | AA | 12 h | 154 x 65 x 32mm | 1.57kg | - | 32mm |