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For air temperatures, use the ARH4 or the AAV3. When it is not practical to touch the test point (e.g. A ceiling vent) use the ATIR3 infrared head. Infrered is not recommended for pipe temperatures. For comparing temperatures ( two temperatures at once) use the ATH4 with the K-Type thermocouple with the small industry standard plugs.

Two K-Type thermocouple inputs. Display T1,T2 or T1-T2.

• +ºF accuracy after simple field calibration.
• Range: -50ºF to 1500ºF (optional hi-temp thermocouple required).
• Displays ºF directly at 0.1ºF resolution on DMM with 0.1mVDC resolution.
• Select ºF or ºC.
• Includes two “wrap tab” thermocouples plus velcro straps. Thermocouples insulated to 400ºF.
• Auto off can be disabled for data logging (DL3).

Use for quick temperature measurements.

• Measures temperature without contact.
• 8: Field of view
• Laser sight included.
• Select ºF or ºC.
• Operating ambient temperature: 32ºF to 122ºF at <75%RH.
• Range: 0ºF to 752ºF.
• Accuracy: Whichever is greater. At 73ºF + 10ºF at <90%RH; + 2.0%rdg or 4ºF, 32ºF to 160ºF; + 3.0%rdg or 5.5ºF, 0ºF to 31ºF, 161ºF to 752ºF.

ARH4 on DL3

Measures air temperature and RH%. Displays wet bulb for getting target superheat from manufacturers charts.

• + 1ºF, 32ºF-113ºF.
• + 2.5% RH, 10% to 90% RH @ 77ºF.
• Select ºF or ºC.
• Displays temperature, RH%, wet bulb and dew point.
• Auto off can be disabled for data logging (DL3).

Automatically log readings with the DL3 Data Logger

Measures air velocity. Use to estimate CFM. Also displays temperature.

• Max operating temperature: 120ºF.
• Use with DL3 to find average air flow and compute CFM.

Air Velocity.

• Ft/min, M/s, MPH, KM/hr.
• Range: 80 5900 ft./min
• Accuracy: + 3% + 1dgt.

Temperature.

• Displays ºF or ºC.
• Range: -4ºF to 140ºF.
• Accuracy: + 1ºF from 32ºF to 113ºF.
• Resolution: 0.5ºF.