---
product_id: 314557049
title: "SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration"
brand: "smartro"
price: "2858CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/314557049-smartro-sc42-professional-digital-hygrometer-indoor-thermometer-room-humidity-gauge
store_origin: SN
region: Senegal
---

# 24h max/min records ±0.27℃ accuracy 10s update rate SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration

**Brand:** smartro
**Price:** 2858CFA
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate Your Environment with Precision!

## Quick Answers

- **What is this?** SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration by smartro
- **How much does it cost?** 2858CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/314557049-smartro-sc42-professional-digital-hygrometer-indoor-thermometer-room-humidity-gauge)

## Best For

- smartro enthusiasts

## Why This Product

- Trusted smartro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay Informed 24/7:** Track your environment with 24-hour max/min records, ensuring you’re always in the know.
- • **Brilliantly Clear Display:** Enjoy a large 3.5'' HD LCD screen with backlight for easy reading, even in low light conditions.
- • **Calibration for Perfection:** Manually calibrate for enhanced accuracy, certified by the Aerospace Institute for Metrology.
- • **Versatile Mounting Options:** Easily place it anywhere with a retractable stand, magnets, or wall-mounting capabilities.
- • **Precision at Your Fingertips:** Experience industrial-grade accuracy with Swiss sensors that detect even the slightest changes in humidity and temperature.

## Overview

The SMARTRO SC42 Professional Digital Hygrometer is a top-tier indoor thermometer that offers exceptional accuracy with Swiss sensors, a user-friendly backlit display, and versatile mounting options. It tracks humidity and temperature changes every 10 seconds and provides 24-hour max/min records, making it ideal for various settings from nurseries to wine cellars. Calibration support ensures you maintain optimal conditions effortlessly.

## Description

Full description not available

## Features

- ✨【The Best Industrial Grade Accuracy】Humidity gauge with built-in Swiss sensors, it detects subtle humidity and temperature changes and updates readings in each 10 seconds. Temperature tolerance is within ±0.27℃(-20 to 70℃) and humidity is ±2%RH (1 to 99% RH). The digital hygrometer is pre-calibrated for accurate temperature and humidity measurement.
- ✨【Large Easy-to-Read Backlit Display】Temperature and humidity monitor with 3.5'' large HD LCD screen. 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.
- 【24 Hours/All-time Max & Min Records】The room thermometer displays high and low records for the past 24 hours and All-time; Indoor thermometer measure conditions and identify changes in temperature and humidity instantly.Comfort Indicator ensures proper humidity control, helping you to maintain a comfortable atmosphere in your home.
- 【Wide Applications & More Mounting Options】With a retractable stand, two powerful magnets and a wall-mount hole, this digital thermometer indoor can be easily attached to your refrigerator, wall or placed on a table. Suitable for baby’s room, nursery, office, closet, incubator, greenhouse, garden, wine cellar, basement critter terrarium etc.
- 【Calibration Supported】The monitor can be manually calibrated to improve data readings when product placement or environmental factors impact your data accuracy. Calibration certification from Aerospace Institute for Metrology and Measurement Technology. Powered by 2x 1.5v AAA batteries (not included).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | SMARTRO |
| Part number | SC42EUK |
| Item Weight | 130 g |
| Product Dimensions | 8.64 x 3 x 8.64 cm; 130 g |
| Batteries | 2 AAA batteries required. |
| Item model number | SC42 |
| Colour | blue|black |
| Power source type | Battery Powered |
| Voltage | 3.0 |
| Item Package Quantity | 1 |
| Plug profile | Inside Mount |
| Batteries included? | No |
| Batteries Required? | No |
| tech_spec_battery_description_toys | AAA (2) |

## Product Details

- **Colour:** blue|black
- **Brand:** SMARTRO
- **Item weight:** 0.13 Kilograms
- **Battery description:** AAA (2)
- **Mounting type:** Inside Mount

## Images

![SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration - Image 1](https://m.media-amazon.com/images/I/71J0pGYeMFS.jpg)
![SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration - Image 2](https://m.media-amazon.com/images/I/71xxttfrSUL.jpg)
![SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration - Image 3](https://m.media-amazon.com/images/I/71kMBSbg7vL.jpg)
![SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration - Image 4](https://m.media-amazon.com/images/I/71si35LZMXL.jpg)
![SMARTRO SC42 Professional Digital Hygrometer Indoor Thermometer Room Humidity Gauge Pro Accuracy Calibration - Image 5](https://m.media-amazon.com/images/I/81-O4kKqaNL.jpg)

## Questions & Answers

**Q: Is it suitable and durable for a high humidity environment? Like a reptile Vivarium? Humidity could be between 70-80% on a consistent basis.**
A: If the climatic conditions around the device are within the manufacturers normal operating range, I would expect the device to  operate satisfactorily.
In my opinion, the 70 - 80% humidity range should be ok.

**Q: How can I manually calibrate this for better accuracy? It says in the listing description this is a feature but I cannot work out how to do it.**
A: Calibrated mine but I can't find instructions at the moment. It was easy and straight forward using the + and - buttons. Sorry can't remember the sequence. Just tried and I think you press set button until it flashes and then up or down button to alter . Then leave untill it settles.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate
*by T***  on 12 November 2022*

I brought one checked it via a salt test bang on 75% brought another same as bang on 75%. Very pleased with the accuracy, very easy to use & has a decent magnet to hang up. to verify if your meter is correct put it in a plastic container with a cap filled with salt add a very small amount of water to the salt so you can still pick it up & it doesn’t run, seal it properly leave it a full 24hrs and it should read 75% if not it’s out & needs calibration )

### ⭐⭐⭐⭐⭐ Excellent customer service and product
*by R***B on 28 November 2022*

Easily set up and calibrated , accuracy excellent and brilliant customer sevice, After setting up I put the instuctions back into box which unfortunatly was thrown away. Contacted ustomer service by e mail and instruction download recieved next day .Highly recommend 5 stars

### ⭐⭐⭐⭐⭐ Digital hygrometer & thermometer
*by P***L on 6 January 2022*

I wanted a more accurate device to show me the temperature and relative humidity on my boat in the winter months.I like the large, easy to see & read, digital display, also with bright illumination if required.The device correlates with other similar devices I have.I have also used it at home and would recommend this particular product versus lower cost alternative products.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-24*