Senseca HD2103 Thermal Anemometer (AP471 Probe) | 0.1–40 m/s, volume flow calculation, HD2103.2 logs 38000 readings, IP66

Senseca HD2103 Thermal Anemometer: AP471 Probe, Volume Flow Calculation

Overview

The HD2103.1 and HD2103.2 are Senseca (formerly Delta OHM) portable anemometers that connect to hot-wire or vane probes to measure air velocity, volume flow and temperature in ducts and at outlets; Pt100 / Pt1000 probes can also be connected for temperature. The probes have a built-in SICRAM module storing factory calibration data, so no reconfiguration is needed when changing probes. The HD2103.2 is the logging version; probes are sold separately.

Key Specifications

• AP471 S1 (telescopic hot-wire): 0.1–40 m/s; ±0.2 m/s (0–0.99 m/s), ±0.4 m/s (1–9.99 m/s), ±0.8 m/s (10–40 m/s); temperature −25 to 80 °C
• AP471 S2 (omnidirectional hot-wire): 0.1–5 m/s; ±0.2 m/s (0–0.99), ±0.3 m/s (1–5)
• Volume flow: Automatic calculation for duct cross-sections of 0.0001–1.9999 m²
• Logging: HD2103.2: 38000 readings, USB 2.0; both versions have RS232C
• Protection and power: IP66; 4 × AA, approx. 200 h (hot-wire probes extra; S1 approx. 20 h at 20 m/s)
• Dimensions and weight: 185 × 90 × 40 mm, 470 g

Applications

• Air velocity and volume flow testing in HVAC ducts, fume hoods and cleanrooms.

Specifications per the Senseca HD2103 product page and HD2103 series datasheet (retrieved 2026-10-22).