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Extech RH401 Digital Psychrometer + InfraRed Thermometer QATAR

1200.0QR

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Description

Feature	Details
Product Name	Extech RH401 Digital Psychrometer + InfraRed Thermometer
Functions / What It Measures	• Relative Humidity (RH) • Air (ambient) Temperature • Dew Point • Wet-Bulb Temperature • Non-contact Surface Temperature (via built-in IR thermometer) (Instrumart)
IR Thermometer Details	Non-contact infrared temperature measurement, with laser pointer and 8:1 distance-to-spot ratio, adjustable emissivity (0.3–1.0) — useful for measuring surface temperature of ducts, machines, walls etc. (Instrumart)
Display Modes	Triple-LCD backlit display — you can view combinations like: Air Temp + RH + Surface Temp; or Dew Point + RH + Surface Temp; or Wet-Bulb + RH + Surface Temp. (Instrumart)
Additional Features	Data-Hold, auto power-off (programmable), low-battery indicator, retractable humidity/air-temperature sensor for protection, adjustable emissivity for IR surface measurement, IR-temp minus dew-point (T1-DP) differential for moisture risk detection. (Instrumart)
Measurement Ranges & Accuracy	Humidity: 10–90 % RH, ±3 % RH; Air Temperature: –20 °C to +50 °C (–4 to 122 °F), ±1 °C / ±1.8 °F; IR Surface Temp: –200 °C to +1370 °C (as per datasheet) (with IR emissivity and surface-type correct selection) (Instrumart)
Power & Package Contents	Powered by 4 × AAA batteries (included) + carrying case. Sensor probe retracts for storage/transport. (Instrumart)
Ideal For / Use Cases	HVAC inspections, building/environment diagnostics, moisture/control monitoring (RH, dew point, wet-bulb), surface-temperature checks (ducts, walls, machines), storage rooms, warehouses, facility maintenance, mold/moisture risk audits, indoor-air & environment control, industrial/environment labs, surface & ambient monitoring.
Why It’s Useful	Combines multiple environmental and surface-temperature measurements in one handheld unit — saves time and cost vs carrying separate RH meter + IR thermometer. Good for quick spot-checks and ongoing monitoring.