Your cart is empty.
Your cart is empty.Unique instrument shows the exact air conditions in labs, hoods, clean rooms, coolers, stockrooms, incubators, environmental chambers, and chemical storage areas. Continuously and simultaneously displays relative humidity and temperature in degree F/degree C with dual-recall memories. Monitors conditions overnight, on weekends, or for any time period. Fast-response Solid-state sensors show changes in less than 30 seconds. Display is updated once per second. Multi-point calibration on an individually-numbered traceable certificate which assures accuracy from an ISO/IEC 17025:2005 (1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the Si units through NIST or other recognized National measurement institutes (nmi) that are signatories to the cipm Mutual recognition Agreement. Extra-Large, easy-to-view 5/8 in. High digits can be read at a glance from as far away as 20 feet. Meets Federal requirements for CLIA specification 493.1252 for monitoring temperature and humidity. Self-contained, stable, accurate unit requires no adjustment or maintenance. Case is chemical-and shock-resistant ABS plastic. Supplied with traceable certificate, wall mount, Bench stand, switch to read degree F/degree C, fast-response Solid-state sensors, and two AAA batteries (replacement battery, cat. Number 350-98596).
Dr. T
Reviewed in the United States on August 4, 2024
Given the cost of this unit, I expected a lot from it.Hygrometer was off by 2° from the beginning. It totally crapped out after 12 years. New batteries can not get it to turn on any longer. Maybe my expectations are too high?
samantha
Reviewed in the United States on February 15, 2024
Unfortunately this item is supposed to come as a 2-year calibration, but we received one on 02/13/24 that expires next month.
Jo Fortin
Reviewed in Canada on September 17, 2023
Bought 2 of these but were showing different temperature and humidity when standing next to the other.
Customer
Reviewed in the United States on December 13, 2021
Did not like the fact that it was dated due for calibration in Apr 2025. That is about 16 months from now and they require calibration/replacement every 2 years. Guess it was sitting on the shelf somewhere. Oh and it came turned on already so the batteries are probably half dead or it was a returned item for the same reason. The plastic piece was not in the battery holder that you pull out when you buy it. Maybe returned because of date code.
RCPH
Reviewed in the United States on March 1, 2019
Nothing to dislike about this instrument as I have found it to respond within a minute or two to a new environment and it to be stable by giving me consistent readings and it has enough sensitivity. I am happy with the price when I think about how it works.
Lotuslander
Reviewed in Canada on January 19, 2019
NIST traceability was of the essence - used to double-check calibration of other SmartHome units (humidity is notoriously flaky, and some units appear to "measure" by calculation from broadcast outdoor humidity + measured indoor temperature). This unit's measurements proved repeatable and accurate (vs. saturated-salts dual point calibration check).Clever/convenient stand - although I'd have preferred a magnetic mount. Cheap/effective.
Asking for a friend...
Reviewed in the United States on July 24, 2014
Works well in my basement to monitor the atmosphere for my instruments. I checked the calibration with another instrument at work and it was within spec. Close enough for cigars and guitars!
Dean Walker
Reviewed in the United States on January 24, 2014
Accurate and easy to read. Great price and comes with NIST cert. Will buy again no problem. Nice product, great price.
G. Tool
Reviewed in the United States on January 18, 2014
This is the third room hygrometer I have purchased. The first two were always in disagreement. Reading reviews of these units convinced me that anything low cost was unreliable. This unit responds quickly and gives readings that are consistent and that appear to be withing a couple of percent of the relative humidity. I highly recommend it.
DinoD
Reviewed in the United States on January 1, 2013
The Good:This unit comes with a Z540-1 traceable Cal Cert that was done at 24.0C and 45.0%RH.I compared it to another more expensive NIST Traceable unit in my lab and they agree almost perfectly. Instructions are easy enough but is not hard to figure out how to this unit without them. It comes with a tilt stand that is useable but it sets to a fairly low angle. This is a small unit but the display is very crisp and sharp and stays that way no matter what angle you view it from. It appears well built and solid.The not as Good:The included Cal Cert was already 6 months past issue. Be aware there is no decimal resolution on this unit, integers only for Temp and Humidity. This is likely OK for a lot of folks, but I want .1% resolution for my Calibration Reports. My one real complaint - to change the temperature readout from F to C you have to remove the tilt stand/battery compartment door to gain access to that switch. Very inconvenient. You could drill a small hole in the battery compartment door to get around this.This unit is well built and is priced nicely for one that has NIST traceability. However it does have its limitations so I have ordered another (more expensive) unit with .1% resolution and a front panel F/C switch. I like this one enough to keep it as a spare
Recommended Products
