Product Details

1 Product Overview

DAQ-SP-RL4G solar-powered 4G wireless radar level sensor is a wireless liquid level measurement product launched by Shanghai DAQ IoT Technology Co., Ltd. It integrates a 79~81GHz millimeter-wave radar level sensing unit, a solar power module, a lithium battery energy storage unit and a 4G wireless transmission module. It continues the core advantages of radar sensors — high accuracy and high stability — while being equipped with a low-power control circuit, requiring no external mains power and relying on solar power.

The terminal has a built-in rechargeable lithium battery and is rainproof for outdoor use, making outdoor installation convenient. The built-in 4G IoT SIM card allows the periodically collected data to be connected directly to the IoT cloud platform, and real-time device data can be viewed directly on a mobile app or browser. It is suitable for various remote monitoring scenarios where outdoor power supply is inconvenient.

3 Product Features & Parameters

3.1 Acquisition Characteristics

• Acquisition type: liquid level

• Level range: 0 ~ 15m (other ranges customizable)

• Liquid accuracy class: ±2mm

• Acquisition frequency: 15 minutes / time (configurable)

3.2 Electrical Characteristics

• Solar panel power: 1W

• Operating voltage: DC12V

• Battery capacity: 0.5Ah

3.3 Communication Characteristics

• Supports 4G network by default

• WiFi/LoRa and other communication modes customizable

3.4 Structural Characteristics

• Main body dimensions: 174.5mm × 90.60mm × 43mm

• Sensor outer diameter: Ф39.5mm

• Main body protection rating: IP65

• Main body installation: wall-mounted or screw-fixed

• Sensor installation: front/rear panel mounting

3.5 Operating Environment

• Temperature: -20°C ~ 85°C

• Humidity: 0 ~ 95% (non-condensing, no dew)

4 Core Advantages

• Low power consumption and self-powered, using clean energy for “zero carbon”

• Elegant appearance, waterproof and dustproof, able to operate in various complex field environments

• Simple installation and rapid deployment, helping IoT projects go live quickly

• Supports custom registration and heartbeat packets, making it easy for the platform to distinguish devices

• Supports any IoT cloud platform and configuration software, with data protocol integration

• Supports battery voltage acquisition for easy viewing of battery level

• Supports remote parameter configuration and FOTA remote upgrade, minimizing on-site installation and maintenance labor costs