The Ebyte E22-400M22S is a LoRa module with a communication range of up to 7 km, low power consumption, and support for the 433/470MHz frequency bands, meeting long-range and low-power requirements. The E48-433M20S, based on Huapu Microchip, features a transmit power of 20dBm and a communication range of 3.5 km. It also has low power consumption and is suitable for battery operation. The E42-400M20S is also an SPI module, operating in the 428-522MHz frequency band, with a transmit power of 100mW and a communication range of 2.5 km. It also features an industrial-grade design.

Also, consider the application scenario. For example, if a longer range is required, the E22's 7km range might be more suitable; if power consumption is extremely demanding, the E48's low-power mode might be better. Furthermore, compliance with local regulations is crucial, such as whether 433/470MHz is applicable.

Finally, ensure that the recommended information is accurate, citing specific parameters from the knowledge base, such as power consumption, range, and frequency band, and highlighting the advantages of each module to help users choose based on their needs.

The following are several recommended low-power, long-distance communication SPI modules.
1. E22-400M22S (Ebyte)
Core Features:
Low Power: Industrial-grade design, supports -40°C to +85°C operating temperature, and optimizes power consumption.
Long-Distance Communication: Up to 7km under ideal conditions.
Frequency: Supports the 433/470MHz unlicensed ISM bands.
Modulation: LoRa™ technology, with strong anti-interference capabilities.
Transmit Power: Maximum 160mW (software-adjustable in multiple levels).
Data Rate: Supports 0.018-62.5kbps in LoRa mode.
Interface: Pure RF transceiver module, requires an external MCU driver (SPI interface).
Application Scenarios: Smart homes, industrial sensors, wireless meter reading, security systems, etc.
Advantages: Compatible with the SX1278/SX1276 series, with strong backward compatibility, suitable for medium- and long-distance, low-power scenarios.

2. E48-433M20S (Ebyte)
Core Features:
Low Power: Based on the Huapuwei CMT2310A chip, supports multiple low-power modes (SLP and Duty-Cycle).
Communication Range: Measured up to 3.5 km.
Frequency: 433 MHz ISM band.
Transmit Power: Maximum 20 dBm (software adjustable to reduce power consumption).
Modulation: Supports FSK/GFSK/OOK, compatible with chips such as the CC1101 and Si4432.
Interface: SPI, requires an external MCU driver.
Applications: Automatic meter reading, building automation, IoT devices, etc.
Advantages: High cost-effectiveness, forward error correction (FEC) improves reliability, and is suitable for battery-powered devices.

3. E42-400M20S (Ebyte)
Core Features:
Low Power: Industrial-grade design, wide operating temperature range of -40°C to +85°C. Communication distance: Up to 2.5 km under ideal conditions.
Frequency band: Supports the 428-522 MHz ultra-wideband.
Transmit power: Maximum 100 mW (20 dBm).
Modulation: Supports IEEE 802.15.4g frame structure, with automatic frequency hopping and ACK/ART functions.
Interface: SPI interface, requires an external MCU driver.
Application scenarios: Industrial automation, smart home, telemetry and remote control systems, etc.
Advantages: High stability, strong anti-interference capabilities, suitable for complex industrial environments.

4. RF3060F27 (Ebyte)
Core features:
Ultra-low power consumption: Sleep current <1.0 μA, receive current only 6 mA (DC-DC mode).
Long-distance communication: Sensitivity up to -135 dBm, transmit power 27 dBm @ 5 V.
Frequency band: 433/470 MHz ISM band. Modulation: Supports forward error correction (FEC) and an adjustable encoding rate.
Interface: SPI, requires an external MCU driver.
Applications: Remote security alarms, medical equipment, and battery-powered wireless terminals.
Advantages: Ultra-high sensitivity and anti-interference capabilities, suitable for applications requiring extreme low power consumption.

Selection Recommendations

1. Extremely low power consumption: Prefer the RF3060F27 (sleep current <1μA) or the E48-433M20S (SLP mode).

2. Ultra-long range: Choose the E22-400M22S (7km) or the RF3060F27 (high sensitivity).

3. Industrial environment stability: Recommend the E42-400M20S or Ra-01.

4. Cost and compatibility: The E48-433M20S and Ra-01 are cost-effective options.