Peace of Mind in Fields | KTH5701 Creates Highly Reliable Agricultural Valve Sensing

With the rapid popularization of smart agriculture and water-saving irrigation, agricultural valve controllers are evolving from simple on-off switches to high-precision, low-power, and high-reliability intelligent execution terminals. The Conntek KTH5701 series low-power high-precision 3D Hall sensor is specially designed for harsh agricultural environments. Featuring 3-axis magnetic field detection, native angle output, microampere-level power consumption and industrial-grade stability, it serves as the optimal sensing solution for intelligent irrigation valves. It fully replaces traditional potentiometers, single-axis Hall sensors and encoders, solving long-standing industrial pain points regarding precision, waterproofing, power consumption and durability.

Integrated with independent X/Y/Z three-axis Hall sensing units and built-in CORDIC algorithm, the KTH5701 directly outputs angle signals of XY, XZ and YZ planes with an angle error of only ±1°. Combined with a 16-bit high-precision ADC, it achieves continuous and accurate 0–100% valve opening feedback. With a wide magnetic range of ±130mT for X/Y axes and ±80mT for Z axis, it greatly improves installation tolerance. Supporting both coaxial and off-axis mounting structures, it perfectly adapts to ball valves, butterfly valves, integrated water-fertilizer valves and various other devices, simplifying mechanical design and mass production processes.

Non-contact magnetic detection is the core advantage of the KTH5701 for field applications. Unlike traditional potentiometers which suffer from easy wear, poor sealing and short service life, this chip has no mechanical brushes and no contact loss. It enables fully sealed waterproof and dustproof protection for valves, easily adapting to humid, dusty and corrosive field environments while significantly reducing failure rate and maintenance cost. Additionally, it supports absolute position detection: position data is retained after power failure, and accurate opening data is instantly readable upon power-up without zero reset calibration, greatly improving system responsiveness and reliability.

Its ultra-low power design makes the KTH5701 ideal for solar and battery-powered applications. The chip is equipped with multiple power modes: 2.4μA standby current in sleep mode, 1.4μA in idle mode, and 61.7μA in continuous sensing mode. It supports threshold wake-up and intermittent measurement, entering deep sleep when valves are stationary and responding rapidly upon operation. This dramatically extends battery life in outdoor farmlands, orchards and greenhouses without mains power supply, and reduces battery replacement frequency.

Industrial-grade specifications guarantee long-term stable operation. The industrial version of KTH5701 operates over a wide temperature range of -40℃ to +105℃, resisting extreme cold and high-temperature exposure. With a supply voltage of 2.8V–5.5V and 1.8V-compatible I/O ports, it is fully compatible with mainstream low-power MCUs. Built-in temperature sensor and magnetic field compensation allow configurable calibration via registers, effectively suppressing temperature drift and maintaining stable data output for long-term operation, meeting the high-reliability requirements of unattended equipment.

Highly integrated functions further accelerate product development. The chip supports dual communication interfaces of SPI and I2C for flexible hardware adaptation. BUTT_OUT/TRIG pins can be configured for key detection or external triggering, supporting both local knob control and remote operation. It enables configurable magnetic and angle threshold detection for customized alarm and control logic. Built-in OTP memory allows one-time parameter calibration for lifelong use, improving mass production efficiency.

From field rotational irrigation, orchard drip/micro-spray irrigation to greenhouse water-fertilizer integration, the KTH5701 fully meets stringent requirements of agricultural irrigation valves with its advantages of high precision, non-contact operation, low power consumption, high reliability and easy integration. It improves water control accuracy and water-fertilizer utilization, realizes durable, low-power and maintenance-free intelligent valves, and upgrades irrigation equipment from basic functionality to premium performance.

As a core sensing component for smart agriculture, the KTH5701 empowers the upgrading of irrigation equipment with robust technology, providing stable underlying support for water-saving agriculture and digital agriculture. It is the key choice for high-performance, standardized and large-scale development of agricultural valve controllers.

Contact Mandu Technology immediately for the latest datasheet, free samples and customized quotations of Conntek KTH5701AQ2.

Hotline: +86 15012905940

Technical Email: sales@manduic.com

Official Website: www.manduic.com