FT0042 Thermo-Hygrometer
The FT0042 is an indoor thermo-hygrometer that measures temperature from 0 to 60 degrees C and humidity from 10 to 99 percent RH, displaying both values on a 38 x 32 mm LCD. It operates on two AAA 1.5V alkaline batteries and can be placed on a desk or mounted on a wall. The unit

What This Model Is For
The FT0042 is an indoor thermo-hygrometer that measures temperature from 0 to 60 degrees C and humidity from 10 to 99 percent RH, displaying both values on a 38 x 32 mm LCD. It operates on two AAA 1.5V alkaline batteries and can be placed on a desk or mounted on a wall. The unit is designed for use with UCTECH's existing console ecosystem, allowing a brand to add indoor monitoring without developing new firmware or RF protocols.
- Measures temperature and humidity in a single unit, reducing the need for multiple sensors
- Wall mount or free-standing design fits any indoor space without requiring additional hardware
- Two AAA batteries power the console for long-term operation without constant replacement
- LCD display is large enough to read from across a room, with clear numeric values
- Shares the UCTECH console protocol, so it integrates directly into existing product lines
Product Images

Where It Is Used
- Home and office environments needing continuous temperature and humidity monitoring
- Retail stores and showrooms tracking indoor climate for product display conditions
- Greenhouses and indoor growing setups where humidity control affects plant health
- Cold storage rooms and server rooms where temperature stability is critical
- Hospitals and clinics monitoring environmental conditions in patient areas
Who It Is For
- Consumer electronics brands adding indoor climate monitoring to an existing weather station line
- Distributors offering a basic indoor sensor as a companion to outdoor units
- HVAC integrators needing a low-cost, battery-powered indoor monitor
- Agricultural suppliers bundling sensors with climate control equipment
- Building services teams monitoring indoor conditions in managed facilities
Problems It Solves
- Indoor sensors that require wired power or complex installation in retrofit environments
- Multiple standalone devices that create visual clutter and inconsistent readings
- Sensors with poor battery life that need frequent replacement in hard-to-reach locations
- Inaccurate humidity readings that drift over time without calibration
- Lack of a simple, low-cost indoor monitor that works with a brand’s existing console
Technical Features
- Measures indoor temperature from 0 to 60 degrees C with 1 degree C accuracy
- Measures humidity from 10 to 99 percent RH with 5 percent accuracy
- Two AAA 1.5V alkaline batteries power the console, not included
- LCD display size 38 x 32 mm, visible from a distance
- Can be placed on a desk or wall-mounted using the built-in bracket
- Operates on the same UCTECH console protocol as other sensors
- No external power or wiring required for basic operation
Specifications
Values taken from our own product documentation. Anything we cannot verify is marked rather than estimated.
| Temperature Range | 0 to 60 degrees C |
|---|---|
| Temperature Accuracy | plus or minus 1 degree C |
| Humidity Range | 10 to 99 percent RH |
| Humidity Accuracy | plus or minus 5 percent |
| Power | 2 x AAA 1.5V alkaline batteries, not included |
| Console Dimensions | 89 x 63 x 19 mm (H x W x D) |
| LCD Dimensions | 38 x 32 mm (L x W) |
| Mounting | Free-standing or wall mount |
| Display Type | LCD |
Materials and Construction
- Moulded plastic housing for the console
- Battery compartment sized for 2 x AAA cells
- Integrated wall mounting bracket
How It Is Made
Console sub-assemblies are populated and soldered on our own assembly line
LCD and sensor modules are tested before final assembly
Housings are sealed and checked on rainfall and waterproof test equipment
Every unit is ageing tested before it leaves the factory
Quality Control
- Rainfall and waterproof testing on the assembled console
- Constant temperature and humidity chamber runs covering the 0 to 60 degrees C range
- Vibration testing to simulate transport and handling
- Smog ageing to check the housing and seals
- Final ageing test on every unit before packing
Customisation Options
- Own-label printing and retail packaging
- Manual and quick start guide in the destination language
- Alternative battery configurations on request
- Console pairing to a customer's existing UCTECH-protocol display
Compared With the Alternatives
vs Separate temperature and humidity sensors
One unit reduces cost, space, and the number of batteries needed
vs Wired indoor monitors
No cable run required, ideal for retrofit or temporary installations
vs LoRa or Wi-Fi enabled indoor sensors
433MHz RF is simpler and cheaper; suitable for single-unit indoor use
Use Guide
- Place the unit in a central indoor location, away from direct sunlight and heat sources
- Mount the unit on a wall using the built-in bracket, ensuring it is level
- Insert two AAA alkaline batteries, ensuring correct polarity
- Allow 30 seconds after power-up for the display to stabilise
- Check the display every few weeks to confirm readings are within expected range
FT0042 Thermo-Hygrometer Questions
What is the real battery life
With two AAA alkaline cells, expect several months of operation under normal use. Battery life varies with display refresh rate and ambient temperature.
Can it be used outdoors
No. The unit is designed for indoor use only and is not weather sealed.
Does it support Fahrenheit
Yes. The unit can switch between Celsius and Fahrenheit via the display settings.
How accurate is the humidity reading
The humidity accuracy is plus or minus 5 percent across the 10 to 99 percent RH range.
What is the lead time and minimum order
Tell us the quantity and target ship date and we will confirm both by email. Lead time depends on whether own-label printing and packaging are involved.
Which certifications does it carry
TBC. Ask us for the current certificate set for your destination market before you place the order.
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View Specifications →Request a Quote for the FT0042 Thermo-Hygrometer
Tell us the quantity, the destination market and whether you need own-label printing. We will confirm pricing, pairing and lead time in writing.