AI-TEK 70085-1010-112 70085 Series Passive Speed Sensor Variable Reluctance Sensor

The AI-TEK 70085-1010-112 is a robust, high-performance passive magnetic speed sensor from the trusted 70085 Series. Designed for demanding industrial environments, this sensor utilizes proven variable reluctance (VR) technology to provide reliable speed measurement, rotational feedback, and control without the need for an external power supply .

As a self-powered unit, the 70085-3030-112 generates a strong AC voltage signal as ferrous metal targets (such as gear teeth, keyways, or slots) pass the sensor's pole piece. This makes it an ideal choice for upgrading legacy systems or designing new installations where durability and simplicity are paramount.

Key Features and Benefits

The AI-TEK 70085-1010-112 stands out due to its rugged construction and fail-safe operation:

Self-Powered Operation: As a passive magnetic pickup, it requires no external excitation or power supply, simplifying wiring and installation .

Exceptional Durability: With no internal moving parts or active electronics, these sensors offer a long service life and high resistance to shock and vibration .

Versatile Environmental Tolerance: Built for extreme conditions, this sensor can operate effectively across a wide temperature range, ensuring performance in both freezing and high-heat settings .

Simple Installation: The cylindrical threaded barrel design allows for easy mounting and precise alignment with the target wheel, reducing installation time and complexity .

Technical Specifications (Datasheet)

Understanding the specifications of the AI-TEK 70085-3030-112 is critical for ensuring compatibility with your application. Below are the key details for this specific model:

Part Number: 70085-1010-112

Series: 70085 Series

Sensor Type: Passive Variable Reluctance (VR) 

Body Style: Cylindrical with Threaded Barrel 

Operating Temperature: -65°F to +212°F (-55°C to +100°C) 

Output Polarity: Pin "B" Positive 

DC Resistance: 1500 Ohms Maximum 

Typical Inductance: 360 mH 

Weight: 5 oz. maximum 

Applications for the 70085-1010-112

Due to its high reliability and flexible design, the AI-TEK 70085 Series is utilized across a wide spectrum of industries . The 70085-1010-112 model is particularly well-suited for:

Industrial Speed Monitoring: Measuring RPM on pumps, conveyors, and motors.

Rail and Transit: Traction control and speed data logging systems where resilience is mandatory .

Engine Controls: Suitable for monitoring rotational speed in various engine applications, including those requiring high-temperature tolerance .

Automotive Testing: Accurate feedback for driveline and wheel speed testing rigs.

Why Choose a Variable Reluctance Sensor?

For engineers and maintenance professionals, the choice of a variable reluctance speed sensor like the AI-TEK 70085-1010-112 often comes down to reliability. Unlike Hall Effect sensors, VR sensors do not require a external power source to function, making them true "fit-and-forget" components . The high output signal strength ensures clear data transmission even over longer cable runs in noisy industrial environments.

The AI-TEK 70085-1010-112 offers a perfect blend of traditional passive sensing technology and rugged mechanical design. Whether you are replacing a faulty unit or specifying a sensor for new heavy equipment, this 70085 Series passive speed sensor delivers the accurate, maintenance-free performance required to keep your operations running smoothly. For OEM applications or aftermarket replacements, verify your target specifications and gear material to leverage the full capabilities of this industrial-grade sensor.