WitMotion WTR03L Rotary Angle Sensor, H/V Auto-Switch, Low Power, Zero Cumulative Error, Rotation Tracking, TTL

Overview

WTR03L is a compact rotary rotation angle sensor designed for long-life, ultra-low-power valve and mechanism monitoring. It automatically recognizes horizontal/vertical mounting, calculates the rotation angle with its built-in algorithm, and tracks cumulative rotation cycles for precise maintenance and safety logs. A 4-layer high-density PCB with gold-plated castellated holes makes it easy to integrate into SMT production. Companion PC software (Witmotion.exe) supports real-time viewing, analysis, and recording.

Key Features

• Horizontal/Vertical freely switch: auto orientation detection for stable output.

• Zero cumulative error: fuses gravity acceleration and magnetometer data to eliminate long-term drift.

• Ultra-low power: as low as 425 µA (5-min avg) in vertical mounting at 0.1 Hz output.

• Compact & lightweight: small form factor; install-friendly castellated pads.

• Industrial rotation/valve position tracking: records open/close state and opening degree to replace manual checks.

• Free PC software: driver (CH340), quick wiring, auto-search, logging and plotting.

Parameters

Electrical Parameters

Applications

• Industrial valves and actuators: automatic cycle counting, open/close detection, and opening-degree monitoring to prevent failures.

• General rotary mechanisms that require cumulative rotation angle tracking with long battery life.

What’s in the box

• WTR03L rotation angle sensor module (board-level, castellated pads)

Details

WitMotion WTR03L Rotary Angle Sensor offers compact, lightweight design with 10-bit precision, ultra-low power consumption, wide range, easy installation, and long lifespan.

WitMotion WTR03L Rotary Angle Sensor offers horizontal/vertical switching, zero accumulated error, compact design, low power consumption, valve position tracking, and free PC software for analysis and recording.

WitMotion WTR03L Rotary Angle Sensor offers Serial TTL communication, 1° resolution, 0.1–1Hz output rates, operates -40°C to 85°C, 5V supply, current 425μA–4mA based on mounting and output rate.

WitMotion WTR03L rotary angle sensor tracks valve rotations with zero cumulative error, ensuring precise monitoring. CE and ISO9001 certified, it delivers critical accuracy for industrial applications.

Compact rotary angle sensor WTR03L, about the size of a quarter, offers motion detection in tight spaces. CE and ISO9001 certified, it comes with free, easy-to-use software. Simply download the tutorial, install the CH340 driver, connect the wiring, and open Witmotion.exe. After scanning, data displays automatically. Real-time angular graphs appear on a laptop screen, showing high precision. The sensor links via color-coded wires to a small circuit board, ideal for compact systems.

Industrial Application: Safeguard shut-off valves with automatic cycle counting, eliminating manual checks and preventing failures. Rotary Angle Sensor.