🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$564.99
Extech Instruments RH390 Precision Psychrometer — image 1
Infrared ThermometersExtech✓ In stock

Extech Instruments RH390 Precision Psychrometer

$564.99
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30-day returns
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About this item
  • Measures relative humidity from 0 to 100% and temperature from -4 to 140 F (-20 to 60 C)
  • Accuracy 2% from 20% to 90%; 1.8F (1C)
  • Dual display of humidity and temperature or humidity and dew point or humidity and wet bulb
  • Capacitance sensor responds under to humidity changes in under 30 seconds
  • Slim design with rubberized ides for better grip
Product details
Brand
Extech
Manufacturer
Extech
Colour
Grün

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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