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| Brand | 3M |
|---|---|
| Origin | USA |
| Model | Quest QT-32 |
| Compliance | GB/Z T189.7-2007, ISO 7243, ACGIH TLVs®, OSHA Guidelines |
| Sensor Range | Dry-Bulb / Wet-Bulb / Black Globe Temperature (0–120°C, ±0.5°C), Relative Humidity (20–95% RH, ±5% RH, non-condensing) |
| Operating Environment | –5°C to +60°C (electronics & sensors) |
| Wireless Range | Up to 200 ft (61 m) between sensor and display unit |
| Power | 9V alkaline or NiMH rechargeable battery |
| Enclosure Rating | IP54 |
| Dimensions | 23.4 × 18.3 × 7.6 cm |
| Weight | 1.2 kg |
| Certifications | UL/CSA Class I Div 1 Groups A/B/C/D, Class II Div 1 Groups E/F/G, Class III, Temp Code T3 |
| Brand | AccuTrak (USA) |
|---|---|
| Origin | USA |
| Model | VPE-1000 |
| Weight | 233 g |
| Dimensions | 17.97 cm × 6.1 cm × 2.22 cm |
| Sensor Frequency Range (Airborne) | 34–42 kHz |
| Sensor Frequency Range (Contact Probe) | 16–24 kHz |
| Sensitivity | −80 dB/V·µbar |
| Heterodyne Oscillator | Digital |
| Sensitivity Control | 256-step digital |
| Volume Control | 256-step digital |
| Audio Output Bandwidth | 0–4 kHz |
| Display | 20-segment bar graph with peak-hold + alphanumeric LCD |
| Brand | TSI |
|---|---|
| Origin | USA |
| Model | 9565 / 9565A / 9565P / 9565X |
| Temperature Range (964/966/980/982 probes) | −10 to 60 °C, ±0.3 °C accuracy |
| Temperature Range (960/962 probes) | −18 to 93 °C, ±0.3 °C accuracy |
| Temperature Range (995 vane probe) | 0 to 60 °C, ±0.1 °C accuracy |
| Air Velocity Range (960/962) | 0–50 m/s, ±3% of reading or ±0.015 m/s (whichever is greater), 0.01 m/s resolution |
| Air Velocity Range (995 vane) | 0.25–30 m/s, ±1% of reading or ±0.02 m/s |
| Air Velocity Range (pitot tube) | 31.27–78.7 m/s, ±1.5% at 10.16 m/s |
| CO Range (982 probe) | 0–500 ppm, ±3% of reading or ±3 ppm |
| CO₂ Range (980/982 probes) | 0–5000 ppm, ±3% of reading or ±50 ppm |
| Relative Humidity Range | 0–95% RH, ±3% RH |
| Static/Differential Pressure Range | −28.0 to +28.0 mmHg (−3735 to +3735 Pa), ±1% of reading or ±0.01 mmHg |
| Barometric Pressure Range | 517.15–930.87 mmHg, ±2% of reading |
| Data Storage | 26,500 readings across 100 user-defined data groups |
| Sampling Interval | 1 s to 1 h |
| Operating Temperature | 5–45 °C |
| Dimensions | 9.7 × 21.1 × 5.3 cm |
| Weight (with batteries) | 0.36 kg |
| Power | 4 × AA batteries or optional AC adapter |
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