**A: Express(DHL/TNT/FEDEX/UPS/EMS), Air & Ocean Transportation are available.
**A: 7 days after payment confirmed.
**A: We accept T/T, Western Union, PayPal.
**A: Sure, we can send samples if u could let us know your Express Account.
**A: Normally we do 30% in advance, balanced 70% before shipment.
**A: Yes, Hiotech.net offers technical support to assist customers with product installation, configuration, and troubleshooting.
**A: The warranty period for Hiotech.net's products typically ranges from 1 to 2 years, depending on the product category.
**A: You can reach Hiotech.net's customer support team through their website's contact page or via email/phone provided on their website.
**A: LoRaWAN and NB-IoT are both low-power wide-area network (LPWAN) technologies, each with its own set of advantages and drawbacks. Here's a more detailed breakdown:
Long range: LoRaWAN can reach up to 15 km in rural areas.
Low power consumption: LoRaWAN devices have exceptional battery life and can operate for years on a single battery charge.
Lower data rates: LoRaWAN offers data rates of up to 27 kbps, which may not be suitable for applications requiring high-speed data transfer.
Limited indoor coverage: LoRaWAN may not perform as well in indoor settings compared to outdoor environments.
High capacity: NB-IoT can support a large number of devices, up to 100,000 per cell.
Improved indoor coverage: It can penetrate walls and obstacles, making it suitable for indoor applications.
Higher data rates: NB-IoT offers higher data rates, up to 100 kbps, which is better for applications requiring faster data transfer.
Shorter range: In rural areas, NB-IoT has a range of up to 5 km, which is shorter than LoRaWAN's range.
**A: Yes, LoRaWAN is a versatile technology that can be effectively used in various challenging environments, including water wells, tunnels, and pipelines. Its low-frequency characteristics grant it strong penetration abilities, allowing it to function even in underground and enclosed settings. With the proper deployment of gateways, LoRaWAN can reliably cover these areas.
**A: The number of gateways required depends on your specific deployment area and the density of devices you wish to connect. A general rule of thumb is to start with one gateway per square kilometer. Conduct on-site testing and use a handheld signal analyzer to assess signal strength and identify potential signal blind spots. Adjust the number of gateways as needed based on your findings.
**A: Whether you need approval to install a LoRaWAN gateway depends on your location and local regulations. It's crucial to consult with your local communication authorities and adhere to applicable laws and regulations regarding gateway installations.
**A: The number of LoRaWAN devices a single gateway can connect to varies based on the gateway's power and the data rate of the devices. A typical gateway can support thousands of devices. However, it's important to note that the number of devices a gateway can handle may decrease as the data rate of the devices increases.
**A: The range of a LoRaWAN gateway is influenced by the specific deployment environment. In rural areas, LoRaWAN gateways can have a range of up to 15 km. In urban areas, the range is typically shorter, ranging from 2 to 5 km. It's essential to consider your deployment environment when planning gateway placement.
**A: LoRaWAN devices can operate effectively in remote areas without access to electricity. These devices can be battery-powered, which allows them to function autonomously for extended periods. Battery-powered LoRaWAN devices can last for years on a single battery charge, making them ideal for off-grid locations.
**A: Yes, it's advisable to install a lightning rod on LoRaWAN gateways installed on rooftops or in remote areas. Lightning protection is important to safeguard LoRaWAN gateways from potential damage due to lightning strikes.
**A: LoRaWAN devices are designed to operate reliably in wet and rainy conditions. These devices are typically rated as IP67, indicating their resistance to dust and their ability to withstand submersion in water for up to 30 minutes.
**A: The impact of a new building or power line on your existing LoRaWAN network will depend on the specific location of the construction. If the new construction obstructs signals from your devices to the gateways, it may disrupt connectivity. In such cases, on-site testing can help assess the extent of the impact, and adjustments, such as gateway repositioning or additional coverage, may be required.
**A: Common sources of interference for LoRaWAN communications include channel occupancy, same-frequency interference, and electromagnetic interference. LoRaWAN devices follow protocols to mitigate these interferences. Channel occupancy is addressed by detecting an idle channel before transmitting data. LoRaWAN devices are designed to perform well in various environments, but certain high-interference scenarios may require optimization.
**A: A LoRaWAN temperature and humidity device powered by an 8000mAh (3.6V) battery, reporting data every 8 hours and on significant environmental changes, can typically last 2 to 3 years.
**A: Monitoring a device's battery voltage and setting low voltage alarms is a common method to detect low battery levels.
**A: If the device has a removable battery compartment and you can obtain the same battery model, you can replace the batteries yourself.
**A: Replacing a malfunctioning LoRaWAN device is relatively straightforward if it's the same model, and the application server supports it. If it's a different model, configuration changes may be necessary.
**A: Adding new devices to an existing LoRaWAN system is possible, provided the devices conform to LoRaWAN standards and are compatible with the network. Special functionality may require additional gateways and application server configurations.
**A: For a device to work with a LoRaWAN system, it must operate on the correct frequency and channel, and possess the necessary encryption keys. Devices should adhere to LoRaWAN specifications for compatibility.
**A: Yes, you can remotely control LoRaWAN devices from your smartphone, provided the device supports remote control, and your application server enables this feature.
A: The number of devices a LoRaWAN gateway can support varies based on the gateway's power and the data rate of the devices. A typical gateway can handle thousands of devices simultaneously. However, the number of devices a gateway can handle may decrease as the data rate of the devices increases.