Ultrasonic + WiFi + Solar: Five Core Technology Breakthroughs of HojellyTek Wireless Level Monitor

Target Audience: Engineering Technicians, Product Selection Managers, System Integrators
Introduction

In the field of level monitoring, the HojellyTek Wireless WiFi Ultrasonic Real-time Tank Level Monitor is redefining industry standards with its exceptional technical capabilities. This article deeply analyzes five major advantages of this product from a core technology perspective.

I. Ultrasonic Non-Contact Measurement – Never Clog, Truly Maintenance-Free

The HojellyTek level monitor uses ultrasonic non-contact measurement. The sensor is installed at the top of the tank, emitting ultrasonic pulses toward the liquid surface and calculating level height by measuring echo time.

Core advantages of this design include:

• No liquid contact: Sensor never corrodes or gets contaminated
• No moving parts: No float jamming or spring fatigue failures
• Wide media compatibility: Measures water, oil, mild acids/alkalis, sewage
• Maintenance-free: Virtually no daily maintenance required after installation

Compared to traditional float-type sensors, the ultrasonic solution fundamentally eliminates debris jamming issues. Compared to submersible pressure sensors, it completely eliminates probe scaling problems.
II. Solar + Battery Dual Power – Perfect for Outdoor No-Power Locations

Power supply has always been the biggest installation challenge for rooftop water tanks and outdoor oil tanks without power access. HojellyTek uses redundant dual power supply design:

• 3.3W 5V solar panel: Automatically powers/charges the device during daylight, achieving 22% photoelectric conversion efficiency
• 18650 rechargeable battery (2000mAh): Stores solar energy for night/cloudy days
• USB power adapter (optional): For locations with mains power available

This means:

• No dedicated wiring required: Installation location not limited by power availability
• Automatic charging: Works with sunlight, no manual intervention needed
• Non-stop operation: Battery backup ensures monitoring continuity on cloudy/rainy days

III. IP67 Waterproof + Wide Temperature Range – Built for Harsh Outdoor Environments

Rooftop water tanks and outdoor oil tanks are exposed to sun, rain, heat, and cold year-round. HojellyTek's protection design ensures durability:

CE/RoHS/REACH certified: Complies with international safety and environmental standards

IP67 waterproof rating: Completely dustproof, can be temporarily submerged (1m for 30 minutes)

Wide operating temperature: -10℃ to +70℃, suitable for most climates

ABS reinforced engineering plastic housing: UV-resistant and durable
IV. Deep Tuya Platform Integration – Global Access, Multi-Device Control

The HojellyTek level monitor seamlessly integrates with the Tuya/Smart Life platform:

• Real-time mobile App view: Level percentage, battery level, signal strength all visible
• Multi-user sharing: Share with family, property managers, maintenance personnel
• Multi-device management: One account manages up to 100 sensors
• Cross-platform compatibility: Data syncs to Alexa, Google Home
• No additional gateway required: Direct connection to existing WiFi network

V. Separate Sensor and Main Unit Design – Worry-Free Signal Optimization

HojellyTek uses a separate sensor and main unit design connected by a 3-meter shielded cable:

• Signal flexibility: Main unit can be positioned where WiFi signal is strongest
• Proper sensor placement: Sensor still accurately installed at tank top
• Flexible solar panel positioning: 2m cable allows optimal sunlight exposure

This design completely solves the signal problem of traditional integrated devices where installation location limits connectivity.
Key Specifications