Wireless temperature sensor also called wireless temperature transmitter. Wireless temperature sensor acts as a battery-powered temperature measurement monitoring system with the function of measuring the gauge temperature of gases and liquids in a piping.
wireless temperature sensor working principle
The sensing element of the wireless temperature transmitter is PT100 platinum thermistor, and Lora/4G wireless module is used for wireless communication. When affected by the external temperature, the resistance value changes. When a constant current excitation power supply is added to the bridge, the temperature resistance signal can be converted into millivolt voltage signal, which can be amplified into digital signal, and then sent to the upper computer by the wireless module.
How does wireless Lora temperature sensor works ?
Let’s get a overview of SenTec Lora temperature sensor. SenTec Lora sensor manufacturer module based on Germany SEMTECH RF integrated chip with Low Power LAN wireless standard. The name of LoRa is Long Range Radio. Its biggest feature is that it can travel farther than other wireless methods under the same power consumption conditions, realizing the unity of low power consumption and long distance. It consumes 3-5 times longer than the traditional wireless radio communication distance.The LoRa modulation technology is adopted to realize on-site distributed multi-point IOT equipment monitoring and collection. The communication distance can reach 2km, and data from sensors, PLCs, smart meters, etc. can be passed through radio frequency.LoRa radio frequency is mainly used for multi-point and long-distance distributed sensor acquisition and transparent transmission of RS485 serial devices, instruments, and transmitters to the cloud platform.
What is the Lora temperature sensor advantages and disadvantages?
Advantages:
Temperature Lora sensor battery is designed with 38000mAh large battery capacity, battery life estimated 3~4 years (eg. data update interval 1 hour)
Temperature Lora sensor range up to 100Mpa, support other custom ranges
Measuring accuracy reach up to 0.1%
Temperature Lora sensor data transmission frequency: ISM frequency bands include 433Mhz (default), 868Mhz, 915Mhz, etc.
Temperature Lora sensor manufacturer: 12 years warranty
Temperature Lora sensor module: using semtech chips imported from Germany
Temperature Lora sensor price: most effect price price
Temperature Transmission distance: The open distance can reach 2-5 Km, default distance design is 1KM.
Capacity: A LoRa gateway can connect thousands of LoRa nodes.
Disadvantages:
Requires regular battery replacement
The cost is a little bit higher compared with standard cable wired Temperature sensor/transmitter
What is the differences among the wireless signals, like Lora, Lorawan, 4G, Nb-Iot etc. ?
To simplify, there are 2 types signal monitoring format. One type is what we will use the wireless temperature transmitters and receivers (gateway) to read the data, usually by computer monitoring software to read all details, such as the Lora and LoraWan. Another type is the upload the monitoring to the cloud by SIM card to read data directly on phone or computer, rather than go through the gateway, this case we mostly see is 4G, Nb-Iot signal type.
