

Hero image 0 of SMARTRO SC42 Professional Digital Indoor Thermohygrometer, Black, 0 of 8
SMARTRO SC42 Professional Digital Indoor Thermohygrometer, Black
Key item features
- Precise Monitoring: Equipped with built-in Swiss sensors, this thermohygrometer provides industrial-grade accuracy with temperature tolerance within 0.5°F and humidity within 2% RH, updating readings every 10 seconds.
- Clear Display: Features a 3.5'' HD LCD screen with a touch-activated backlight for visibility in low light, alongside reliable operating buttons for manual settings and Fahrenheit/Celsius switching.
- Historical Records: Displays 24-hour and all-time maximum and minimum temperature and humidity records, including a comfort indicator to help maintain an optimal atmosphere.
- Versatile Placement: Offers multiple mounting options including a retractable stand, two powerful magnets, and a wall mount hole, suitable for various environments like nurseries, offices, and greenhouses.
- Custom Calibration: Supports manual calibration to enhance data accuracy based on placement or environmental factors, with certification from the Aerospace Institute for Metrology and Measurement Technology.
Generated by AI
Specs
Thermohygrometer type, Indoor Thermohygrometer
Humidity range, 1 to 99% RH
Display, LCD
Features, Digital Display, Backlight, Powered
Brand, SMARTRO
Rec. use, Indoor, Office
Thermohygrometer type
Indoor Thermohygrometer
Humidity range, 1 to 99% RH
Humidity range
1 to 99% RH
Display, LCD
Display
LCD
Features, Digital Display, Backlight, Powered
Features
Digital Display, Backlight, Powered
Brand, SMARTRO
Brand
SMARTRO
Rec. use, Indoor, Office
Rec. use
Indoor, Office
About this item
Product details
With an accuracy of +/-0.5°F on temperature and +/-2% on humidity, the SMARTRO SC42 Indoor Thermometer ensures accurate measurements to keep you informed about the temperature and humidity in your living space. The SC42 is not just an indoor temperature gauge; it's a versatile tool that provides you with essential information for optimal comfort. Whether you want to monitor the temperature and humidity condition in your bedroom, living room, or any other room, this thermometer delivers accurate results you can trust and helps you create a comfortable and healthy environment. With its user-friendly design, the SC42 is easy to use and read. The clear and intuitive display provides you with instant access to temperature and humidity readings, ensuring hassle-free monitoring. Get yours today and take control of your comfort! Specifications: Switchable mode : °C/°F Temperature Tolerance: ±0.5°F Humidity Tolerance: ±2%RH Temperature Range: -4~158°F ( -20~70°C) Humidity Range: 1~99%RH(relative humidity) Power Supply: 2*1.5v batteries (not included)
Industrial Grade Accuracy: Equipped with built in Swiss sensors, this humidity gauge detects subtle changes in humidity and temperature, updating readings every 10 seconds. Temperature tolerance is within ±0.5℉ (4 to 158℉) and humidity is ±2% RH (1 to 99% RH). Precalibrated for precise measurements
- Easy to Read Backlit Display: Features a 3.5'' HD LCD screen with a touch activated backlight for clear visibility in low light conditions. Includes reliable operating buttons for manual settings and °F/°C switching
- 24 Hours/All time Max & Min Records: Displays high and low records for the past 24 hours and all time. Instantly measures indoor conditions and changes in temperature and humidity. Comfort Indicator helps maintain a comfortable atmosphere
- Wide Applications & More Mounting Options: Comes with a retractable stand, two powerful magnets, and a wall mount hole for versatile placement. Ideal for use in baby’s rooms, nurseries, offices, closets, incubators, greenhouses, gardens, wine cellars, and more
- Calibration Supported: Allows for manual calibration to enhance data accuracy based on product placement or environmental factors. Calibration certification from Aerospace Institute for Metrology and Measurement Technology. Powered by 2x 1.5v AAA batteries (not included)
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Thermohygrometer type
Indoor Thermohygrometer
Humidity range
1 to 99% RH
Display
LCD
Features
Digital Display, Backlight, Powered
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Similar items you might like
Based on what customers bought
EEEkit 4pcs Mini Hygrometer Thermometer with Digital Cigar LCD Display Indoor Temperature and Humidity Meter for Home Office Humidifiers Humidors Car Greenhouse Babyroom, Black Round $11.49
$1149current price $11.49EEEkit 4pcs Mini Hygrometer Thermometer with Digital Cigar LCD Display Indoor Temperature and Humidity Meter for Home Office Humidifiers Humidors Car Greenhouse Babyroom, Black Round
934.3 out of 5 Stars. 93 reviews4.3 out of 5 starsIn 100+ people's carts, AcuRite Indoor Digital Thermometer & Hygrometer (Thermohygrometer); 3"x2.5"x1.3", 0.28 lbs (00325) $11.94
In 100+ people's carts
2 optionsAvailable in additional 2 optionsSponsored$1194current price $11.94AcuRite Indoor Digital Thermometer & Hygrometer (Thermohygrometer); 3"x2.5"x1.3", 0.28 lbs (00325)
33824.5 out of 5 Stars. 3382 reviews4.5 out of 5 stars(4 pack) BestAir Hygrometer Humidity Monitor with Optimal Comfort Zone Display $17.92 $4.48/ea
$1792current price $17.92$4.48/ea(4 pack) BestAir Hygrometer Humidity Monitor with Optimal Comfort Zone Display
1103.9 out of 5 Stars. 110 reviews3.9 out of 5 starsLCD Mini Thermohygrometer for Effective Monitoring of Temperature and Humidity Levels in Homes Offices or Nurseries $7.21
$721current price $7.21LCD Mini Thermohygrometer for Effective Monitoring of Temperature and Humidity Levels in Homes Offices or Nurseries
In 25+ people's carts, (2 pack) TempPro TP49 Digital Thermometer Indoor Hygrometer with Temperature and Humidity Monitor for Room Temperature and Humidity $9.99
In 25+ people's carts
$999current price $9.99(2 pack) TempPro TP49 Digital Thermometer Indoor Hygrometer with Temperature and Humidity Monitor for Room Temperature and Humidity
17074.7 out of 5 Stars. 1707 reviews4.7 out of 5 starsDigital Monitor Hygrometer Thermometer Indoor Room Home Temperature Humidity Monitor for Home Baby Room Black $10.13
$1013current price $10.13Digital Monitor Hygrometer Thermometer Indoor Room Home Temperature Humidity Monitor for Home Baby Room Black
Clearance, HONMEET Compact Analog Thermohygrometer for Home Use, Accurate Indoor Temperature and Humidity Monitor Gauge $8.49 Was $11.03
Clearance
$849current price $8.49, Was $11.03$11.03HONMEET Compact Analog Thermohygrometer for Home Use, Accurate Indoor Temperature and Humidity Monitor Gauge
14 out of 5 Stars. 1 reviews4 out of 5 starsGeevon Indoor WiFi Hygrometer Thermometer, Bluetooth WiFi Humidity Temperature Gauge with Large LCD Display, with Max Min Records, Historical Data Storage and Export for Room Greenhouse(1 Pack ) $17.99 Was $27.99
4 optionsAvailable in additional 4 options$1799current price $17.99, Was $27.99$27.99Geevon Indoor WiFi Hygrometer Thermometer, Bluetooth WiFi Humidity Temperature Gauge with Large LCD Display, with Max Min Records, Historical Data Storage and Export for Room Greenhouse(1 Pack )
254.4 out of 5 Stars. 25 reviews4.4 out of 5 starsEmbedded LCD Digital Thermometer Hygrometer -50 to 70°C with Remote Probe-black $9.58
$958current price $9.58Embedded LCD Digital Thermometer Hygrometer -50 to 70°C with Remote Probe-black
Homena 1pc Digital Hygrometer Indoor Electronic Thermopro Digital Thermometer Temperature Humidity Meter Home Improvement Tools $10.76
2 optionsAvailable in additional 2 options$1076current price $10.76Homena 1pc Digital Hygrometer Indoor Electronic Thermopro Digital Thermometer Temperature Humidity Meter Home Improvement Tools
Geevon Bluetooth Thermometer Hygrometer, Indoor Temperature Humidity Sensor with HD Display, App Notification Alert, Historical Data Storage and Export(3 Pack ) $17.99 Was $29.99
2 optionsAvailable in additional 2 options$1799current price $17.99, Was $29.99$29.99Geevon Bluetooth Thermometer Hygrometer, Indoor Temperature Humidity Sensor with HD Display, App Notification Alert, Historical Data Storage and Export(3 Pack )
133.8 out of 5 Stars. 13 reviews3.8 out of 5 starsBest seller, Geevon Digital Indoor Thermometer Hygrometer, Wireless Temperature Humidity Meter with Comfort Index, 1*AAA Battery, Calendar, Small Room Temperature Monitor for Home, Greenhouse, Bedroom(White) $19.99 Was $24.99
Best seller
8 optionsAvailable in additional 8 options$1999current price $19.99, Was $24.99$24.99Geevon Digital Indoor Thermometer Hygrometer, Wireless Temperature Humidity Meter with Comfort Index, 1*AAA Battery, Calendar, Small Room Temperature Monitor for Home, Greenhouse, Bedroom(White)
2594.5 out of 5 Stars. 259 reviews4.5 out of 5 starsLOLIPPYY Compact Digital Thermometer with Humidity Sensor, Accurate Indoor Temperature & Humidity Monitor for Home and Office, White $8.65 Was $10.51
$865current price $8.65, Was $10.51$10.51LOLIPPYY Compact Digital Thermometer with Humidity Sensor, Accurate Indoor Temperature & Humidity Monitor for Home and Office, White
Multifunctional Indoor Digital Thermometer Hygrometer - 3 Pack, Humidity Meters Gauge with Built-In Probe $8.14
$814current price $8.14Multifunctional Indoor Digital Thermometer Hygrometer - 3 Pack, Humidity Meters Gauge with Built-In Probe
TempPro TP55W Digital Hygrometer Indoor Thermometer Humidity Gauge with Jumbo Touchscreen and Backlight Temperature Humidity Monitor (Formerly ThermoPro) $11.99
$1199current price $11.99TempPro TP55W Digital Hygrometer Indoor Thermometer Humidity Gauge with Jumbo Touchscreen and Backlight Temperature Humidity Monitor (Formerly ThermoPro)
1364.7 out of 5 Stars. 136 reviews4.7 out of 5 starsMini Digital Hight Accurate Temperature and Humidity Monitor,LCD Display Fahrenheit ,Fast Response $9.35 Was $15.47
$935current price $9.35, Was $15.47$15.47Mini Digital Hight Accurate Temperature and Humidity Monitor,LCD Display Fahrenheit ,Fast Response
Clearance, TUOBARR Home Hydrothermograph, Digital Temperature And Humidity Monitor, Indoor Hygrometer Sensor, Hygrometer, Room Hygrometer $3.03 Was $5.64
Clearance
$303current price $3.03, Was $5.64$5.64TUOBARR Home Hydrothermograph, Digital Temperature And Humidity Monitor, Indoor Hygrometer Sensor, Hygrometer, Room Hygrometer
SMARTRO SC92 Professional Digital Wireless Indoor Outdoor Thermohygrometer $26.99
$2699current price $26.99SMARTRO SC92 Professional Digital Wireless Indoor Outdoor Thermohygrometer
15 out of 5 Stars. 1 reviews5 out of 5 starsXUBIYM 6-Pack Mini Digital Thermometer Hygrometer Temperature Humidity Gauge Meter $14.41
$1441current price $14.41XUBIYM 6-Pack Mini Digital Thermometer Hygrometer Temperature Humidity Gauge Meter
11 out of 5 Stars. 1 reviews1 out of 5 starsAcuRite Digital Humidity and Temperature Monitor with Backlight (01139M) $19.99
$1999current price $19.99AcuRite Digital Humidity and Temperature Monitor with Backlight (01139M)
394.6 out of 5 Stars. 39 reviews4.6 out of 5 stars
Customer ratings & reviews
Includes global ratings and reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |
Showing 1-3 of 7 reviews
Oct 12, 2026
Reviewer name: gamuranes
5 out of 5 stars
Verified Purchase
Very accurate
Very accurate. I used it in combinatation with other hydrometers to correct my Honeywell thermostat humidity settings which was off by 5.
Helpful?750MXZXEXEO12404028120
Jul 27, 2026
Reviewer name: anonymous
Top Reviewer
5 out of 5 stars
Verified Purchase
Very clear and large screen.
So far, so good! It has a very large, easy to read screen and it reads my humidity fairly accurate. I like it for the display to see things clearly.
Helpful?750MXZXEXEO12404028120
May 18, 2026
Reviewer name: Dianne
Top Reviewer
5 out of 5 stars
Verified Purchase
Very helpful in rooms that just do not keep cool.👏👏👏👏
Helpful?750MXZXEXEO12404028120
Current price is USD$18.99
Price when purchased online
- Free shipping
Free Holiday returns until Jan 31
How do you want your item?
Ships to
Arrives between Nov 18 - Nov 21
|Sold and shipped by TYD
5 out of 5 stars
Extended holiday returns
Free Holiday returns until Jan 31