Description
LoRaWAN Temperature Sensor, Solar powered
Features
- LoRaWAN 1.0.3 Class A
- Ultra-low power consumption
- 1 x DS18B20 Temperature sensor, with 2 meter cable
- Measurement range: -55°C ~ 125°C
- Temperature alarm
- Band: AU915
- Remote configuration: Bluetooth v5.1 & LoRaWAN commands
- Supports wireless OTA update firmware
- IP66 Outdoor Waterproof Enclosure
- Solar panel included. The mini solar panel keeps the internal battery charged indefinitely.
Applications
- Smart agriculture
- Smart buildings
- Temperature measurements
How it works
The temperature is reported periodically. Reporting interval is customisable
LoRaWAN
The LoRa wireless technology in this device sends data over extremely long ranges at fixed intervals; default is one measurement every 20 minutes, but can be changed. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising energy consumption. In Australia, the AU915 (915 MHz) band is used, which does NOT need clear line-of-sight.
Solar Powered
This product is solar powered and includes a rechargable 3.8 V / 3000 mAh Li-ion battery. Because the electronics is designed for ultra-low power consumption, the built-in 0.9 W solar panel is sufficient for indefinite duration, long term use.
UBWH Range Testing
Google will tell you that LoRaWAN range is up to 10-15 kilometers in rural areas and 2-5 kilometers in urban areas.
We like to verify and test claims like this. What we can say is that our testing shows that 2 km range is very realistic in an urban area, with a few trees obstructing the line of sight.
We tested with this equipment:
Click image to enlarge
Decoder
See UBWH LoRaWAN Javascript Decoders. These decoders can be used in LoRaWAN Network Servers such as Chirpstack.
Specifications
| RADIO UNIT
|
|---|
| Supply Voltage | Built-in Battery , 2.5v ~ 3.6 V
|
|---|
| Operating Temperature | -40 ~ 85°C
|
|---|
| CABLE
|
|---|
| Length | 2 m
|
|---|
| Jacket | Silicone.
|
|---|
| TEMPERATURE SENSOR
|
|---|
| Type | Dallas DS18B20
|
|---|
| Range | -55 to + 125°C
|
|---|
| Accuracy | ±0.5°C (max ±2.0 °C).
|
|---|
| IP Rating | IP65. Fully dust resistant. Water resistant to low pressure water jets from all directions. Not suitable for immersion in liquids.
|
|---|
| Material | 316 Stainless Steel. Can be exposed to liquids such as fresh/salt water, slightly acidic or alkaline water, and vegetable oils.
|
|---|
| LORA
|
|---|
| Frequency | 915 Mhz
|
|---|
| RF output | Max +22 dBm
|
|---|
| RX sensitivity | -139 dBm
|
|---|
| LoRaWAN | 1.0.3 Class A
|
|---|
| SOLAR PANEL
|
|---|
| Type | Built-in
|
|---|
| Capacity | 0.9W @ 5V
|
|---|
| BATTERY
|
|---|
| Type | Li-ion, rechargeable battery.
Charged by built-in solar panel.
|
|---|
| Voltage | 3.8 V
|
|---|
| Capacity | 3000 mAh
|
|---|
| Self-Discharge | <1% / Year @ 25°C
|
|---|
| POWER CONSUMPTION
|
|---|
| Sleep Mode | 5 uA @ 3.3 V
|
|---|
| LoRa Transmit Mode | 125 mA @ 20 dBm
82 mA @ 14 dBm
|
|---|
Shipping Weights & Dimensions for 1 carton of 2 ea
Dimensions: 14 x 24 x 18 cm
Volume: 0.006 m3
Volumetric Weight: 1.5 kg
Dead Weight: 1.00 kg
