📐 Precision in your pocket, performance in your hands.
The Fieldpiece PRH2 Digital Psychromotor is a compact, battery-powered tool designed for fast, accurate psychrometric measurements including relative humidity and temperature metrics. Its pocket-sized form factor, durable twist cap, and bright backlit display make it ideal for HVAC professionals needing reliable in-duct and walk-around testing. Made in the USA by Fieldpiece Instruments Inc, it combines portability with precision for everyday use.
| ASIN | B0087SD43W |
| Batteries | 1 AA batteries required. |
| Best Sellers Rank | #87,875 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #143 in Multi Testers |
| Brand | Fieldpiece |
| Date First Available | May 31, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 ounces |
| Item dimensions L x W x H | 0.09 x 3 x 2 inches |
| Item model number | PRH2 |
| Manufacturer | Fieldpiece Instruments Inc |
| Measurement Type | Psychrometer |
| Power Source | Battery Powered |
| Product Dimensions | 0.09 x 3 x 2 inches |
| Specification Met | Some |
| Style | Digital |
| UPC | 872641002664 696335209166 |
| Upper Temperature Rating | 120 Degrees Celsius |
C**Y
Great tool
Very accurate and works great while being able to put in your pocket
B**O
Easy to use
Easy to use, and easier to read. Seems a quality product. The only complaint that I can think to have is the size. It is 3-4x the size around of a pen you would put in your pocket, and a little bit taller. I didn't take off a star because I had room for it in my tool bag, and it's small enough that room can easily be made in yours too. I'm happy with my purchase.
W**T
Nice tool but beware of the plastic threads on cap
The PRH2 is a handy tool and I've used it numerous times already in the short time I've had it to determine Wet bulb for calculation of target superheat. The size is just right and I keep it in my Veto TP4 when not in use. I wanted to give it 5 stars but the plastic threading of the cap and the unit don't seam to match very well. In fact if your not careful you can easily, very easily cross thread it. So be careful. I can get the cap to screw on but it's less than a full turn, which doesn't seem natural. If this cap wasn't able to be secured then it would be on its way back. So to summarize I really like this tool, it works well and it will remain in my bag.
H**E
Easy to use, nice size, not fragile.
Works great, needs several seconds to stabilize humidity and temp readings. The cap has not been as issue, it is plastic threads. If you don't cross thread the lug-nuts on a car, you won't have a problem with this unit. If you treat it like any other measuring instrument you have (don't drop it or treat it like a hand tool) it will last you quite a while. It has been used on several locations and been bouncing around the console of my truck with no issue to report.
C**N
Temps
Excellent for taking wet / dry bulb temperatures
D**B
Exceptional product
Arrived much sooner than promised. As an HVAC technician, this is a valuable tool!
R**S
Perfect
This works out great! I do controls and this is within 3% of the calibrated device I use regularly but this one is MUCH smaller.
D**S
Good HVAC tool but fragile
I use this regularly in my work as an HVAC service tech. It calculates indoor wet bulb and outdoor dry bulb accurately to calculate superheat for checking or charging an AC system. It is a good working tool but it has its flaws: - it doesn't clip into a shirt pocket - it is too long. - it is somewhat fragile. Do not twist the top on too hard or the insides will rotate in the case and damage it. Don't drop it. I've broken 2 in 5 years but I'm hard on tools. - it can be slow to register temperatures.
N**K
My favourite one I’ve owned so far. Not too bad for the price tag and it fits well in a tool bag, just have to make sure I don’t forget it somewhere with it being pocket sized.
T**A
Does exactly what it was expected to do. Sometimes the buttons don't respond though.
Z**R
Use this instrument daily for spot checking our wired system transmitters in 90% + humidity environments....it's good for a for a fast check. Most manufacturers including Fieldpiece claim +/- 5% accuracy at this range and it is proving well with in that range and for HVAC applications I think most Techs would be pleased with the performance. Before purchase I read a review regarding the threaded cap and potential failure - here's what happened with mine...when I received the product in factory packaging, the threaded bushing had slid to the cap top, I tapped it out and put a TINY drop of Krazy Glue on the outside of the bushing and reset it to the proper position inside the cap...it's perfect now.
L**S
Works Good :)
F**R
As expected from other reviewers. Batteries last forever. Accurate. In tool bag, doesn't get beat up not sure if you want this in the bottom of your tool bag. Has it's own driver slot in my bag to keep from banging around.
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1 month ago
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