FT009TR Rain Gauge Sensor (Weather Sensors Variant 1)
The FT009TR is a wired rain gauge sensor that measures rainfall volume from 0 to 9999mm with a resolution of 0.3mm below 1000mm and 1mm above, transmitting data every 60 seconds over a 433MHz RF link. It uses four AAA alkaline batteries and outputs data via RF or UART, making it
What This Model Is For
The FT009TR is a wired rain gauge sensor that measures rainfall volume from 0 to 9999mm with a resolution of 0.3mm below 1000mm and 1mm above, transmitting data every 60 seconds over a 433MHz RF link. It uses four AAA alkaline batteries and outputs data via RF or UART, making it suitable for integration into weather stations, irrigation systems, and environmental monitoring setups where accurate, long-term rainfall tracking is needed without a direct wired connection to the console.
- Measures up to 9999mm of rainfall with high resolution below 1000mm
- 60-second transmission interval ensures timely data updates without overloading the RF channel
- 433MHz RF link reaches 100m in open air, suitable for most property layouts
- Dual output format (RF or UART) allows flexible integration with existing systems
- Uses standard AAA batteries, reducing the need for custom power solutions
Where It Is Used
- Agricultural monitoring systems needing accurate rainfall data for irrigation scheduling
- Horticultural greenhouses tracking precipitation to adjust ventilation and heating
- Urban drainage projects measuring rainfall intensity across multiple sites
- Campus and park weather stations requiring long-term, maintenance-light rain tracking
- Industrial tank monitoring where rainfall affects runoff and overflow risk
Who It Is For
- Consumer electronics brands adding rain measurement to an existing weather station line
- Distributors replacing a rain sensor that failed after one season due to battery drain
- Agricultural integrators bundling sensors with automated irrigation controllers
- Building services teams monitoring rooftop runoff for drainage system design
Problems It Solves
- Rain sensors that report total volume but miss short bursts due to long update intervals
- Sensors that fail after a single rainy season due to poor battery life or sealing
- RF links that drop out beyond 30m, requiring a gateway or cabling
- Lack of data output flexibility, forcing a redesign when integrating with a new console
Technical Features
- Rain volume measurement from 0 to 9999mm with automatic overflow indication
- Resolution of 0.3mm below 1000mm, 1mm above 1000mm for long-term tracking
- Rain accuracy of plus or minus 1mm under 15mm, plus or minus 7 percent above
- Transmission interval of 60 seconds, consistent and predictable
- 433MHz RF transmission with 100m open area range and around 30m in typical conditions
- Data output via RF or UART for integration with multiple control systems
- Outdoor temperature sensing from -40 to +60 degrees C at 0.3 degrees C accuracy
- Humidity sensing across 1 to 99 percent RH at 3 percent accuracy
- Integrated solar panel to assist battery life during daylight hours
Specifications
Values taken from our own product documentation. Anything we cannot verify is marked rather than estimated.
| Rain Volume Range | 0 to 9999 mm |
|---|---|
| Rain Volume Resolution | 0.3 mm below 1000 mm; 1 mm above 1000 mm |
| Rain Accuracy | Under 15 mm: plus or minus 1 mm; 15 to 9999 mm: plus or minus 7 percent |
| Transmission Interval | 60 s |
| Transmission Range | 100 m open area, around 30 m in most conditions |
| Transmission Frequency | 433 MHz |
| Data Output | RF or UART |
| Dimensions | 210 x 140 x 140 mm (H x W x D) |
Figures we could not verify against our own published documentation are held back rather than printed: Power, Outdoor Temperature, Outdoor Humidity. Ask us and we will confirm them in writing.
Materials and Construction
- Moulded plastic housing for the rain collector and sensor body
- Integrated solar panel on the sensor top
- Weather sealed battery compartment sized for 4 x AAA cells
How It Is Made
Sensor sub-assemblies are populated and soldered on our own assembly line
Rain collector and internal components are aligned before housing closure
Housings are sealed and tested 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 sensor body
- Constant temperature and humidity chamber runs covering the -40 to +60 degrees C range
- Vibration testing to simulate transport and site mounting stress
- Smog ageing to evaluate housing and seal durability over time
- Final ageing test on every unit before packing
Customisation Options
- Own-label printing and retail packaging
- Console pairing to a customer's existing UCTECH-protocol display
- Alternative battery and solar configurations on request
- Manual and quick start guide in the destination language
Compared With the Alternatives
vs Separate rain gauge and console with wired connection
No cable run needed, but requires battery changes more frequently than solar-assisted units
vs Wireless sensor with 433MHz but no solar assist
Solar assist extends battery life significantly, especially in sunny climates
vs LoRa-based rain sensor
433MHz is lower cost and sufficient for single-site monitoring; LoRa is better for wide-area networks
Use Guide
- Mount the sensor on a level surface, clear of obstructions like trees or buildings
- Ensure the rain collector is unblocked and free of debris before installation
- Use lithium AAA cells in cold climates to maintain performance below freezing
- Pair the sensor with the console before mounting to confirm signal strength
- Check the collector and internal mechanism at the start of each rainy season
FT009TR Rain Gauge Sensor Questions
What is the real range between the sensor and the console
100m in open air. Through walls, foliage, or a roof, plan for around 30m, which covers a typical house and garden.
How often does it update
Every 60 seconds, which is long enough to conserve battery but short enough to capture storm events.
Does the solar panel charge the batteries
No. The panel supplies power during daylight, reducing the load on the AAA cells and extending their life.
Can it work with a console we already sell
If that console supports the UCTECH 433MHz protocol, yes. Send us the model and we will confirm before you order.
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 FT009TR Rain Gauge Sensor
Tell us the quantity, the destination market and whether you need own-label printing. We will confirm pricing, pairing and lead time in writing.