General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

  • Accurately measure any environments temperature, relative humidity (RH), dew point, wet bulb temperature and other moisture parameters
  • Features a jumbo backlit display with double readout; minimum and maximum temperature button and data hold button on device as well
  • This device is field calibratable using optional 33% and 75% salts; toggle between Fahrenheit or Celsius with switch
  • Monitor battery life with low battery indicator; psychomotor an Auto Power Off saving your battery when not in use ( can be disabled for calibration)

A Higher Rank of Precision

Ingenuity is the core of what makes General special. Our mission is to enable our users to work smarter, measure better and be more productive. Our long history of innovative product development, focused on this mission, is why General Tools is the PRECISE TOOL for the job.

Pin Style Moisture Meter Pinless Moisture Meter Pinless Moisture Meter Pin-Pinless Moisture Meter Pin-Pinless Moisture Meter w/ Probe Light Meter
Deep Read Pins
Deep Sensing Probe
Pinless
Measures ultraviolet light
Measures Moisture
Backlit LCD display

Description

General Tools and Instruments Multi-Function Psychomotor is perfect for accurately measure any environments temperature, wet bulb temperature, relative humidity (RH), dew point and other moisture parameters. Features a jumbo backlit display with double readout. This device is field calibratable using optional 33% and 75% salts and toggle between Fahrenheit or Celsius with the device''s switch. This multifunctional tool has a data hold button and a minimum and maximum temperature button; it is also capable of calculating and displaying wet bulb temperature. Monitor battery life with the low battery indicator; the psychomotor also has a 20-minute Auto Power Off saving your battery charge when not in use (this feature can be disabled for calibration). 9V battery included.

GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.

For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction.

WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS

Product information Multi-Function Wet Bulb Capable

    Additional Information

  • ASIN: B00IA1TB2O
  • Customer Reviews: 4.2 out of 5 stars 49Reviews
  • Best Sellers Rank:
    #657,407 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
    #281 in Moisture Meters
  • Domestic Shipping : Item can be shipped within U.S. International Shipping : This item can be shipped to select countries outside of the U.S. Learn More
  • Date First Available: February 6, 2014
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Customer Questions

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Q: How fast it get a stable reading??? it is accurate??

A: 5-10 seconds to get a stable reading using a gentle waving motion. Accuracy is pretty good…

Diane | 5 years ago

Q: can i measure water activity of a thick solution or gel with this?

A: The wired probe is only useful for measuring temperature. The sensor in the top is desig…

W. Huber | 4 years ago

Q: Is this waterproof?

A: No

Arthur L Felder | 4 years ago

Q: should i buy this with or without the wet bulb option. Cant really see were i would need t…

A: Wet bulb gives you relative humidity, which is very important for health such as heat stre…

JAMES GAINEY SSHO | 1 year ago

Customer reviews

4.2 out of 54.2 out of 5
49 global ratings

Top reviews from the United States

Cybernerd
4.0 out of 5 starsVerified Purchase
A Good Instrument After Calibration and Upgrade
Reviewed in the United States on April 2, 2017
I bought a General EP8703 because I wanted an inexpensive calibratable psychrometer. When I saw a used, but like-new, one for under $13 from a third-party Amazon seller, I couldn''t resist. Unfortunately I didn''t notice the EP8703 doesn''t show wet-bulb temperatures, which is... See more
I bought a General EP8703 because I wanted an inexpensive calibratable psychrometer. When I saw a used, but like-new, one for under $13 from a third-party Amazon seller, I couldn''t resist. Unfortunately I didn''t notice the EP8703 doesn''t show wet-bulb temperatures, which is a measurement I need, until after I placed my order. It turns out you have to buy the more expensive EP8709 to be able to measure wet-bulb temperatures. I think it''s a bit disingenuous to represent an instrument that isn''t capable of measuring wet-bulb temperatures as a "psychrometer," but fortunately the EP8703 is easily upgradable to be wet-bulb temperature capable (more on that below).

The unit I received was indeed in like-new physical condition but was so badly out of calibration that it would only read 0.0% RH. Since the unit is calibratable, I had no problem calibrating it to read within its accuracy specifications.

I did disassemble the unit to examine it before I determined the issue with it was simply a bad calibration. I was pleased to discover that the EP8703 and EP8709 appear to use the same PCB. As far as I can tell, the only difference between the units is the HOLD, WBT, and MAX/MIN buttons have been replaced with a blank plastic plug on the EP8703. Otherwise the case, sensors, PCB, LCD, and firmware are all identical.

All I had to do to essentially upgrade my EP8703 to an EP8709 was add the missing buttons. Some tactile switches I had on hand worked great for this purpose. General deserves kudos for making upgrading easy by not crippling the EP8703''s firmware.

The photo I included shows the upgraded unit and how well its wet-bulb temperature measurement agrees with a direct measurement taken with an accurate thermometer outfitted with a wet sock and placed in front of a fan. This is the most accurate digital psychrometer I own.

The build quality is decent for an inexpensive instrument, but I wouldn''t expect it to hold up nearly as well as a unit costing several times as much for long-term field use. The rubber overmolding feels good in the hand, and the case''s torsional rigidity is much better than I expected. The unit doesn''t seem particularly rugged, but it should be sufficient for light field use or occasional DIY work.

Overall, I like this unit for the price I paid.
4 people found this helpful
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Aydin Orstan
2.0 out of 5 starsVerified Purchase
Unreliable humidity readings
Reviewed in the United States on December 9, 2016
Style: Multi-Function
I have a brand new unit & it always reads the humidity 5-10% lower than the expected humidities of saturated salt solutions (outside the stated 3% accuracy range). I have repeated my tests on several occasions with different salt solutions & got the same lower than expected... See more
I have a brand new unit & it always reads the humidity 5-10% lower than the expected humidities of saturated salt solutions (outside the stated 3% accuracy range). I have repeated my tests on several occasions with different salt solutions & got the same lower than expected results. So they are not just random fluctuations. It appears that the factory calibration is off. I will be returning it to Amazon.
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Drewis1337
4.0 out of 5 starsVerified Purchase
Not bad, not professional grade
Reviewed in the United States on May 24, 2019
Style: Multi-Function Wet Bulb Capable with Probe
Decided to give this a try as a budget friendly meter. Reading jumps as you move it, nothing that can magnetize it to a grill or metal piece. If you need a cheap meter for temp/wet bulb and dew point this will get you by I suppose. Would really suggest getting a... See more
Decided to give this a try as a budget friendly meter. Reading jumps as you move it, nothing that can magnetize it to a grill or metal piece.

If you need a cheap meter for temp/wet bulb and dew point this will get you by I suppose. Would really suggest getting a better quality one regardless.
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javier cervantes
2.0 out of 5 starsVerified Purchase
defective product
Reviewed in the United States on July 9, 2019
Style: Multi-Function Wet Bulb Capable with Probe
I like the ease of use and decent size display, but the product arrived with a defective display. the T2 numerical display is not working properly and contacted Amazon but there were not able to help. I do not recommend getting this product through Amazon due to the... See more
I like the ease of use and decent size display, but the product arrived with a defective display. the T2 numerical display is not working properly and contacted Amazon but there were not able to help. I do not recommend getting this product through Amazon due to the difficulty I am having just to get it to replace with a functional unit.
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AC
5.0 out of 5 starsVerified Purchase
Excellent Product; home use, maybe pro
Reviewed in the United States on November 9, 2019
Style: Multi-Function Wet Bulb Capable with Probe
Product works well, and is easy to use. perfect fit for me, homeowner, not sure if it would work for a pro...seems to take some time to provide a stable reading. and, pro may break depending on roughness with tools.
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Pierre T.
3.0 out of 5 starsVerified Purchase
Didn’t Work
Reviewed in the United States on December 31, 2019
Style: Multi-Function
It worked accurately for about a week and then after that it was way off on temperature and humidity.
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John M
4.0 out of 5 starsVerified Purchase
Nice tool. Amazon replacement service fantastic
Reviewed in the United States on September 20, 2021
Style: Multi-Function Wet Bulb Capable with Probe
Nice tool even though the first one had a defective temperature read out Amazon promptly replaced it and it''s a nice tool.
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Oscar M.
5.0 out of 5 starsVerified Purchase
Good tool, not to expensive.
Reviewed in the United States on February 16, 2021
Style: Multi-Function Wet Bulb Capable with Probe
Does the job, seems to work well
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Top reviews from other countries

Amazon Customer
4.0 out of 5 starsVerified Purchase
Our technicians love them. Good readings and accurate
Reviewed in Canada on June 8, 2017
Our technicians love them. Good readings and accurate. Nice and compact. Only thing that is that it should come with a carrying case. Rob
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General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

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General Tools EP8709 Calibratable discount online sale Multi-Function Digital Psychrometer, Wet Bulb Capable online sale

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