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Amprobe TH-1 Compact Probe Style Relative Humidity Meter

1.5 out of 5 stars 4 customer reviews

List Price: $79.95
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  • Relative humidity (RH), temperature, wet bulb, and dew point meter is used for HVAC, indoor air quality, and environmental applications
  • Dual-scale thermometer measures wet- and dry-bulb temperature and dew point in F and C
  • Capacitive humidity sensor ranges from 0 to 100 percent relative humidity (RH)
  • Data hold for recording data, and minimum and maximum temperature readings
  • Protective cover over sensor
  • Power Consumption: <2.0mA
  • Sensor: Electronic Capacitance Polymer Film Sensor
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Technical Details

  • Brand Name: Amprobe
  • Part Number: 3311871
  • UPC: 095969463843

Product Description

The Amprobe TH-1 relative humidity (RH) and temperature meter simultaneously measures relative humidity, dew point, and wet- and dry-bulb temperature to provide dual-scale readings in F and C, and is used for HVAC, indoor air quality, and environmental applications. The capacitive humidity sensor measures RH from 0 to 100 percent. The extended probe has a cover to protect the sensor when taking measurements inside ducts. The meter has minimum, maximum, and hold functions for recording data, and relative zero functionality stores reference points. It requires one 9V battery (included), and includes a carrying bag, and instructions.

Specifications

Temperature range -4 to 122 degrees F (-20 to 50 degrees C)
Temperature accuracy + or - 1 degree F (0.6 degree C)
RH accuracy + or - 4 percent from 10 to 95 percent RH, and + or - 5 percent at all other readings
Wet bulb range 23 to 139.8 degrees F (-5 to 59.9 degrees C)
Wet bulb accuracy + or - 1 degree F (0.6 degree C)
Dew point range -4 to 139.8 degrees F (-20 to 59.9 degrees C)
Dew point accuracy + or - 1 degree F (0.6 degree C)
Resolution 0.1 percent, 0.1 degree (F or C)
Sensor hysteresis + or - 1 percent RH
Operating environment at less than 80 percent relative humidity 32 to 104 degrees F (0 to 40 degrees C)
Storage environment (with battery removed) at less than 70 percent relative humidity 14 to 140 degrees F (-10 to 60 degrees C)
Dimensions 6.89 x 1.65 x 0.63 inches (175 x 42 x 16 mm) (H x W x D)
Weight Approximately 6.4 oz. (180g)
Standards met EN 50081-1/1992 : EN 55022, EN 50082-1/1997 : EN 55024, (EN 61000-4-2/-3/-8, ENV 50204)

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

A thermohygrometer is a combination thermometer to measure temperature, and hygrometer to measure humidity. It monitors relative humidity and temperature in lab, office, home, and greenhouse applications

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA

What’s in the Box?

  • TH-1 relative humidity meter
  • CR2032 battery
  • Instructions


Product Information

Technical Details

Part Number 3311871
Item Weight 2.9 ounces
Product Dimensions 9.4 x 4.1 x 0.6 inches
Item model number TH-1
Color Multicolored
Item Package Quantity 1
Temperature Range -10/60 degrees_fahrenheit
Display Style Liquid Crystal Display (LCD)
Batteries Included? Yes
Batteries Required? Yes
Warranty Description One Year Limited Warranty

Technical Specification

Additional Information

ASIN B0029XQB9U
Customer Reviews
1.5 out of 5 stars 4 customer reviews

1.5 out of 5 stars
Best Sellers Rank #178,792 in Home Improvements (See top 100)
#134 in Home & Kitchen > Home Décor > Weather Instruments > Hygrometers
#1,081 in Home Improvement > Electrical > Testers > Multi Testers
#22,729 in Automotive > Tools & Equipment
Shipping Weight 4 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 25, 2009

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Top Customer Reviews

Verified Purchase
The first one did not respond when I installed the battery.No display....nothing. The second one also did absolutely nothing. The THIRD one did absolutely when installing the battery. Alll the batteries, (3 volts), were good.....(3.255 volts to 3.256 volts). All three of the TH-1's were defective and did nothing when energized. The displays did not turn on or even blink!
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Verified Purchase
I bought this in July and used if for maybe 3 months. I have trouble getting it to turn on. I love the size, fits comfortably in my cargo pocket. I am shopping for a new one because I'm afraid It won't last much longer. Feels very cheaply made. Should be priced at $15 instead of nearly $70
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Worked well for about four months, then quit completely. Cannot recommend this device.
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By Jim on August 4, 2015
Verified Purchase
Works as described but very slow reaction time in the temp.
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