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Extech
Extech SDL350 Hot Wire CFM Thermo-Anemometer
Quote on request
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SDL350: 0.2–25 m/s; to 1.9M CFM; telescoping probe; SD log. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Air velocity 0.2–25 m/s (40–3940 ft/min); CFM 0–1,907,000; CMM 0–54,000; air temp 32–122 °F (0–50 °C); Type K −148–2372 °F; Type J −148–2192 °F
Accuracy
Velocity ±5% of reading; air temp ±1.5 °F (±0.8 °C); TC ±(0.4% + 1.8 °F/1 °C)
Output
SD card datalogger (Excel format); 20M records on 2G SD; 99 manual stores
Supply
6× AA (1.5 V)
Display
9999-count LCD; simultaneous velocity/flow + temperature; MIN/MAX/Hold
Approvals
CE; optional NIST
Fits HVAC duct velocity and volume logging where you need an Extech SDL350—hot-wire 0.2–25 m/s (±5% rdg), CFM to ~1.9 million, telescoping probe to ~7 ft, and SD-card Excel datalogging.
Key advantages
- Velocity — 0.2–25 m/s (40–3,940 ft/min); ±5% reading
- Volume — 0–1,907,000 CFM; 0–54,000 CMM
- Probe — Telescopes to ~7.05 ft (215 cm) with cable
- Temp — Air 0–50 °C; Type K/J input
- Memory — 99 manual; ~20M on 2G SD
Typical applications
- HVAC duct traverses.
- Small-opening velocity checks.
- Logged CFM surveys.
Selection guide
- Duct area for CFM
- TC probes if needed
- NIST option
Common mistakes
- Bent/dirty hot-wire element.
- Wrong duct area entry for CFM.
- Insufficient sample time in turbulent flow.
When to RFQ / what to tell us
- NIST option, accessories.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 35647 |
| Brand | Extech |
| Model | SDL350 |
| Product type | Thermo Anemometer |
| Type | Hot-wire CFM thermo-anemometer / SD datalogger (Extech SDL350) |
| Velocity | 0.2–25 m/s (40–3,940 ft/min); ±5% of reading |
| Volume | 0–1,907,000 CFM; 0–54,000 CMM |
| Air temp | 0–50 °C |
| Probe | Telescoping to ~7.05 ft (215 cm) with cable |
| Memory | 99 manual; ~20M on 2G SD card |
Documents
FAQ
Q: Velocity range? A: 0.2–25 m/s.
Q: Probe length? A: Up to about 7.05 ft with cable.
Q: What should I send for a quote? A: Options/quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Air velocity 0.2–25 m/s (40–3940 ft/min); CFM 0–1,907,000; CMM 0–54,000; air temp 32–122 °F (0–50 °C); Type K −148–2372 °F; Type J −148–2192 °F |
| Accuracy | Velocity ±5% of reading; air temp ±1.5 °F (±0.8 °C); TC ±(0.4% + 1.8 °F/1 °C) |
| Output | SD card datalogger (Excel format); 20M records on 2G SD; 99 manual stores |
| Supply | 6× AA (1.5 V) |
| Display | 9999-count LCD; simultaneous velocity/flow + temperature; MIN/MAX/Hold |
| Approvals | CE; optional NIST |
| Sensor type | Hot-wire thermo-anemometer with telescoping probe to 7.05 ft (215 cm) with cable |
| Notes | Specs from Extech/FLIR SDL350 datasheet (flir.netx 52033) + extech.com product page. |
| Dimensions | 7.2 × 2.9 × 1.9 in (182 × 73 × 47.5 mm); 23.1 oz (655 g) |