SMARTRO SC92 Professional Indoor Outdoor Thermometer Wireless Digital Hygrometer Room Humidity Gauge Temperature and Humidity Meter Pro Accuracy Calibration
$32.99 Original price was: $32.99.$23.99Current price is: $23.99.








From the brand

SMARTRO
Once you have it, you’ll love it!
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SMARTRO is devoted to creating the intelligent electronic home and kitchen products such as weather stations, projection clocks and meat thermometers etc.
Equipped with professional technical team and after-sales team, SMARTRO cherishes every feedback and comment on the products so as to get improvement accordingly. Our aim is always to provide the best shopping experience for our customers!
Alarm Clocks & Weather Station

In/ Outdoor Thermometer
Why Choose SMARTRO?
SMARTRO has decades of experience in home and kitchen tools. We pay much attention to the product quality and using experience of our customers.
We have always been providing the best after-sales service, as customers’ satisfaction is our first goal!
What makes our products unique?
SMARTRO has been always looking for the perfect combination of the technology, home and kitchen life. And we have been also committed to developing more excellent products to our customers.
We hope that people who use SMARTRO products can enjoy the efficient cooking method as well as a healthy life.
The Best Accuracy in All Conditions: SC92 wireless thermometer built-in world-leading Swiss sensor, shows subtle humidity and temperature changes. Arctic cold, scorching heat or jungle humidity: Unmatched temp ranges, humidity tolerance and update speeds mean readings can always be within 0.5℉ and 2% RH. It comes pre-calibrated for accurate measurement, and can be manually calibrated to improve data accuracy when it was impacted by other factor.
Connect up to 3 Wireless Sensors: Monitor your whole home, storeroom or greenhouse confidently with the hygrometer’s wireless transmission capability. Add more sensors (only one included) and the digital thermometer can be connected to display readings from 4 places up to 200ft apart.
Comprehensive Temperature Tracking: The room thermometer tells you the highest and lowest inside and outside temperatures or humidity from the previous 24 hours or all time. Assess historical changes and refer to the Comfort Indicator to quickly see if they are deviating from ideal levels.
Easy-to-Read Backlit Display: Temperature and humidity monitor with 3.5-inch HD LCD screen(LxW: 3.4”* 3.4”). A simple touch on the top to turn on backlit. Clear and power-saving, reading more easily under weak backlit. Reliable operating buttons on the back for manual setting or °F/°C switching. Note: The backlit in the pictures is all in ON state. The backlit is not always on.
Built for Anywhere: The SC92 humidity monitor, with its retractable stand, magnets and wall-mount, can be adapted for any placement almost anywhere. It can be put in the baby’s room, closet, incubator, greenhouse, garden, nursery, wine cellar, office, basement or critter terrarium: No corner is too dark or awkward.
8 reviews for SMARTRO SC92 Professional Indoor Outdoor Thermometer Wireless Digital Hygrometer Room Humidity Gauge Temperature and Humidity Meter Pro Accuracy Calibration
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Mark Thompson –
I won’t buy another brand
I bought this in 2021 for its ability to measure down to 1% RH. My use case is measuring RH in a dry box for FDM 3D printing filament, where low RH is critical for filament storage and usage. These sensors have performed flawlessly for the last 5 years, and I suspect will perform similarly well for years to come. Battery life on these things can easily be measured in years, I don’t remember the last time I needed to change the batteries. Each one needs 2 batteries, the outdoor sensor needs AA, and the indoor needs AAA.The only VERY small thing I can find wrong with these two sensors is that it takes a while for the outdoor sensor to update the measurement on the indoor one, its probably at least a few minutes. But that is a nonissue for most people and the update rate directly effects battery life of the outdoor sensor, so most people won’t care.What really pushed me to make this review was doing a tear down of the outdoor sensor and investigation of the components inside. The sensor for temperature and humidity is a Sensirion SHTC3, which is a fantastic sensor. They are calibrated against a standard which has a NIST traceable calibration. It is likely that you will never need to do a calibration yourself either, even after 10 years the humidity sensor will typically only drift by +/-2.5% and the temperature sensor by +/-0.36f. And from some limited testing after 5 years between the outdoor and indoor channel the RH measurement only differs by 2% and the temperature measurements are the same.Pricing wise, if you wanted to remake just the main electronics from one of these sensors (display, sensor, mcu, battery holder, and radio) it would cost more than the product as a whole. So its great value for money. Overall, if I need a countertop hygrometer/thermometer I wouldn’t hesitate to buy a Smartro product and I would recommend this product if anyone else needs one for their dry box.
RockstarAlchemist –
Beautiful little temperature and humidity monitor
Full disclosure, this product was provided by the manufacturer, with the aim of providing a thorough evaluation/review. The monitor arrived in good order in compact packaging. The manual is easy to follow and succinct. The remote station requires two AA batteries and the indoor monitoring station requires 2 AAA batteries. I would like to have had the batteries provided, especially considering they are different types, but for the price I don’t think it’s a big deal. Both units immediately powered up and linked up with no issue. I would like to have the receive signal intensity noted on the display, to ensure I hadn’t paced the remote station too far away. The manual states it has a 200ft range. I placed the unit <100 feet for this test.I placed the remote station outside on a screw, under the eave of my garage, as the manual states it is not water proof. Additionally, the unit faces north, but it’s on a west facing side of the house. I live in Texas, so the afternoon heat will really put this product through its paces. We had 107°F temperatures this past week! After a couple of days, I relocated the sensor to the north side of the house, and the temperature reading were more accurate, i.e. don’t place in direct sunlight.The base station has a stand that opens and closes, so it can sit on a table. The nicest touch are the magnets on the back, as I was able to just “stick” it to our refrigerator.After placing the remote unit outside, I did note there was a slow update rate between the remote and base station, as their values didn’t concur. I also noted there was a significant acclimation period once the device was placed outside. For on-going monitoring, I don’t see this as an issue. If the update rate is slow, it’s likely at a pace relevant to the rate of change throughout the day and would also prolong the battery life.Overall, I’m very happy with this product. It’s a nice looking, simple and straight forward tool to know the temperature and humidity inside and outside. It worked flawlessly during the week-long evaluation. I will continue to use the device and gain a better assessment of it’s durability.PROS:• Bright, colorful, and easily read display• Very easy set up• Magnets on the back of the base station make for convenient mounting to a metal surface (e.g. refrigerator)CONS:• Batteries not included• Does not measure barometric pressure
Cambam –
Semi-Accurate with the ability to fix. Not Real-Time. Excellent Customer Service Response.
After adding batteries (2 AA and 2 AAA), I followed the instructions and the receiver and the transmitter sync’d up fairly quickly (about 20 seconds). You have the ability to have up to 3 transmitters (on 3 channels) and allow the receiver to toggle between them. This feature will not work unless the transmitters is already sync’d to specific channel.The receiver has a built in temp sensor as well as the transmitter. The idea is that the receiver would be inside and the transmitter outside so you get to see both temperatures (top temp is transmitter/bottom is receiver temp). I had the transmitter and receiver right next to each other in the same room for 10 minutes and they were consistently off by 1.5 degree. Both temperatures were off from the actual room temperature (taken using a laser thermometer by 2 degrees and 3.5 degrees respectively). The receiver will allow you to calibrate the device by moving the numbers manually within the actual range.I am using this device to monitor the temperature of my truck’s canopy/bed while my dogs are back there. I wanted something that provides temperatures pretty close to real time. The transmitter sends a signal to the receiver every 1 minute 15 seconds (1:15). You can tell because the red LED light on the transmitter blinks every 1:15. However, it doesn’t update the temperate/humidity until the third cycle. So you have to wait 3:45 to get the updated temperature from the transmitter. In the big scheme of things this may not be a big deal and it will probably improve battery life.The device is $25 so don’t have the expectation that this is a high quality heavy duty item. It gets the job done, but will probably crack/break if dropped from six feet (2 meters). I plan to leave it in my car so I won’t be surprised if the receiver’s plastic warps, but we will see.
BobS –
I like the product as it’s easy to use and accurate. Best of all is their customer service. The touch button to turn on the backlight was not working on my unit. I sent a note to their support. They were very responsive and after a few exchanges for problem determination they sent me a new unit which arrived within 2 days. It’s great when a company stands behind its products!
piero652 –
sono felice: precisa , semplice, completa.
laurent –
le colis était ouvert et déballé dans la boite aux lettres…..
Simon holmes –
Only ordered 5 months ago and it’s faulty . Can’t get a answer from seller to replace the main unit .
Mark –
It’s excellent quality and simple to use it