Monitor Temperature & Humidity at a Glance
The TempPro TP55 Digital Temperature & Humidity Meter makes it easy to monitor indoor temperature and relative humidity (RH%) in homes, offices, storage areas and other humidity-sensitive environments.
With its large 4-inch backlit LCD display, high/low memory and fast 10-second refresh rate, the TP55 provides an easy way to see changing indoor conditions and identify when humidity may need attention.
Why Monitor Indoor Humidity?
Relative humidity is the amount of moisture present in the air compared with the maximum amount the air can hold at that temperature.
Monitoring RH% can be particularly useful if you are dealing with condensation, musty odours, mould concerns or moisture-sensitive storage. It can also help you understand whether a dehumidifier is maintaining the humidity level you are aiming for.
Understanding Relative Humidity
As a general guide, many indoor environments are comfortable around 40–60% RH. The appropriate level can vary depending on the building, climate, temperature and what is being stored or protected.
| Below 40% RH | Air may feel dry, depending on the environment and individual comfort. |
| Around 40–60% RH | A commonly comfortable range for many indoor environments. |
| Above 60% RH | Higher humidity can increase the likelihood of condensation and mould in susceptible environments. |
| Above 70% RH | Persistent high humidity warrants investigation, particularly where moisture-sensitive materials are present. |
Key Features & Benefits
Large 4-Inch Backlit Display
Large, bold digits make temperature and humidity readings easy to see, while the backlight makes the display easier to read in darker conditions.
Accurate Humidity Monitoring
Measures relative humidity from 10% to 99% RH, with an accuracy of ±2% RH from 30–80% RH and ±3% outside that range.
Fast 10-Second Refresh Rate
Readings update every 10 seconds, allowing you to see changes in temperature and humidity without waiting long periods for a new reading.
High & Low Memory
View recorded high and low temperature and humidity readings to help identify fluctuations throughout the day.
Dry, Comfort & Wet Indicator
A simple visual indicator provides a quick reference to the current humidity conditions.
Flexible Placement
The TP55 can be positioned on a tabletop, mounted on a wall or attached magnetically to a suitable metal surface.
Ideal Applications
The TempPro TP55 is a practical humidity and temperature monitor for a wide range of indoor environments, including:
| ✓ Homes and apartments | ✓ Bedrooms and living areas |
| ✓ Offices and workplaces | ✓ Storage rooms and cupboards |
| ✓ Wine cellars | ✓ Musical instrument storage |
| ✓ Camera and electronic equipment storage | ✓ Caravans and motorhomes |
| ✓ Boats and cabins | ✓ Dehumidifier monitoring |
| ✓ Plant growing areas | ✓ Reptile and animal enclosures |
Note: The TP55 is designed for indoor monitoring and is not a waterproof meter.
Use the TP55 to Monitor Your Dehumidifier
A humidity meter is a useful companion to a dehumidifier. Instead of relying on how the room feels, you can monitor the actual relative humidity and see how conditions change over time.
For example, record the RH% before switching your dehumidifier on, then check it again after several hours. This can provide a simple indication of how the room is responding and whether further investigation may be required.
Damp Solutions Expert Tip
If you're buying a humidity meter because you've noticed condensation or mould, don't just take one reading.
Record temperature and RH% at different times of the day, particularly in the morning and evening. Comparing readings can help identify whether humidity is consistently high or whether conditions are changing with weather, heating, cooling or ventilation.
TempPro TP55 Specifications
| Temperature Range | -50°C to 70°C |
| Temperature Accuracy | ±0.5°C from 0°C to 60°C; ±1°C outside this range |
| Humidity Range | 10% to 99% RH |
| Humidity Accuracy | ±2% RH from 30% to 80%; ±3% RH outside this range |
| Refresh Rate | 10 seconds |
| Display | Large 4-inch LCD with backlight |
| Temperature Units | °C / °F selectable |
| Power | 2 × AAA batteries |
| Unit Size | 110 × 85 × 25 mm |
| Sensor | NTC |
Frequently Asked Questions
What is a hygrometer?
A hygrometer is an instrument used to measure the amount of moisture in the air. The TempPro TP55 combines a hygrometer with a digital thermometer to display both relative humidity and temperature.
What humidity level should I aim for indoors?
Around 40–60% RH is a useful general guide for many indoor environments. However, the appropriate level depends on the building, climate, temperature and what you are trying to protect.
Can I use the TP55 with a dehumidifier?
Yes. The TP55 is useful for monitoring room humidity while a dehumidifier is operating and can help you understand how the RH% changes over time.
Where should I place my humidity meter?
Position the meter in the area you want to monitor, away from direct sunlight, heaters, air-conditioning outlets, open windows and other immediate sources of heat or moisture. Avoid placing it directly beside a humidifier or dehumidifier outlet.
Is the TempPro TP55 waterproof?
No. The TP55 is designed for indoor monitoring and should be kept away from direct water and wet environments.
Product branding update: This product was previously sold under the ThermoPro name and is now branded TempPro. During the transition, product packaging or the unit itself may display either ThermoPro or TempPro branding.
Not Sure What You Need?
If you're monitoring humidity because of condensation, mould, storage or moisture problems, we're happy to help you understand what your readings mean.
Call Damp Solutions Australia on 1300 353 043
- Stock: In Stock
- Model: Meter-ThermoPro-Jumbo-Basic
