Gauger420 Two-Wire Loop-Power Ultrasonic Level Sensor

Gauger420 two-wire loop-power ultrasonic level sensor is a highly featured, loop-powered ultrasonic transmitter designed for liquid level, bulk level, distance, volume and open channel flow measurement. It adopts a pure two-wire loop-power structure and supports 4-20mA, HART and RS485 communication, making it widely used in industrial liquid storage, bulk material silos, wastewater treatment and open channel flow monitoring scenarios.

What Is Gauger420 Two-Wire Loop-Power Ultrasonic Level Sensor

Gauger420 two-wire loop-power ultrasonic level sensor is a loop-powered, non-contact ultrasonic transmitter that only requires two wires for both power supply and signal output. It can track liquid level changes at a speed up to 10 meters per minute and has an extremely short dead zone as low as 15cm. The sensor supports USB configuration, automatic temperature compensation and multiple output modes, suitable for harsh industrial environments.

Key Features of Gauger420 Two-Wire Loop-Power Ultrasonic Level Sensor

Two-Wire Loop-Power Design

Gauger420 two-wire loop-power ultrasonic level sensor adopts a pure two-wire loop-power structure without extra power supply. It supports 4-20mA, HART and RS485, which greatly simplifies wiring and reduces installation cost.

Short Dead Zone & High Tracking Speed

The sensor has an extremely short dead zone down to 15cm and a level tracking speed up to 10m/min, ensuring real-time and accurate measurement for fast-changing liquid level applications.

IP68 Waterproof & Durable Structure

Gauger420 two-wire loop-power ultrasonic level sensor uses PVDF ultrasonic sensor and PC/ABS+UV housing, reaching IP68 waterproof rating. It can work stably in corrosive, outdoor, rain, snow and dust environments.

Wide Measuring Range

Gauger420 two-wire loop-power ultrasonic level sensor uses PVDF ultrasonic sensor and PC/ABS+UV housing, reaching IP68 waterproof rating. It can work stably in corrosive, outdoor, rain, snow and dust environments.

Multiple Communication Interfaces

Gauger420 two-wire loop-power ultrasonic level sensor supports 4-20mA analog output, HART protocol, RS485 digital communication and USB configuration port, making it compatible with most industrial control systems.

Automatic Temperature Compensation

The sensor is equipped with an internal temperature sensor for automatic temperature compensation, ensuring stable and accurate measurement under changing environmental temperatures.

Applications of Gauger420 Two-Wire Loop-Power Ultrasonic Level Sensor

Gauger420 two-wire loop-power ultrasonic level sensor is widely used in liquid level measurement, bulk material level measurement, open channel flow measurement and wastewater treatment. Typical applications include industrial storage tanks, process tanks, outdoor silos, water treatment plants, petrochemical systems, food and agriculture industries.

Technical Specifications Summary

Gauger420 two-wire loop-power ultrasonic level sensor has standard and long-range versions. The standard version has a measuring range of 0–8m for liquids and 0–5m for solids, with a dead zone of 15cm. The long-range version has a measuring range of 0–9.5m for liquids and 0–6m for solids, with a dead zone of 35cm. Both versions have IP68 protection, operating temperature from -30°C to +70°C and support 4-20mA, HART, RS485 and USB communication.

Technical Specifications of Gauger420 Long Range：

Technical Specifications of Gauger420 Standard Range：