WitMotion SINDT01/02-TTL Tilt Sensor – Single-Axis (X) & Dual-Axis (XY) AHRS Inclinometer, Modbus TTL/RS232/RS485, IP67, 0.1°, 5–36V

Overview

WitMotion SINDT01-TTL and SINDT02-TTL are compact AHRS inclinometer/tilt sensors designed for horizontal/tilt/angle measurement. Both adopt a MEMS high-precision module, provide Modbus communication, integrate a built-in Kalman filter fusion algorithm for stable outputs, and feature IP67 protection with an aluminum shell. They support 5–36 V wide-range power, max 200 Hz return rate, and free PC software for real-time visualization and data curves. Typical applications include elevator and tower-crane equipment, turntables, smart vehicles, car chassis tuning, medical equipment, and solar inclination monitoring.

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Key Features

• MEMS high-precision inclination measurement with built-in Kalman filter.

• Modbus protocol over TTL/RS232/RS485 interfaces.

• IP67 protection; strong EMC resistance; >3500 g high-seismic rating.

• 0.1° inclination accuracy (X/Y axes).

• Wide supply: 5–36 V; typical current 25 mA (normal mode).

• Free PC software with motion simulation (car/head/plane/cube) and real-time curves.

• Horizontal or vertical mounting (default: horizontal).

• Compact metal housing with through-holes for rigid mounting.

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Model Differences

SINDT01-TTL (Single-Axis, X)

• Measured axis: X (single axis).

• Angle range: X ±180°.

• Typical use: single-axis leveling/tilt.

SINDT02-TTL (Dual-Axis, XY)

• Measured axes: X and Y (dual axis).

• Angle range: X ±180°, Y ±90°.

• Typical use: platform leveling in two axes.

Both models share 0.1° accuracy on measured axes, Modbus communications, IP67 protection, and the same enclosure.

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Electrical & Communication Specifications

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Accuracy & Ranges

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Dimensions

• Body: 41 mm (H) × 36 mm (W) × 15 mm (T)

• Mounting hole diameter: 3.4 mm

• Reference board area around label ~30 mm (for mounting clearance)

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Wiring & Pin Definitions

TTL (4-wire)

RS485

MCU Logic Connection (illustrated)

• Sensor side supports 5–36 V supply.

• Connect TX↔RX, RX↔TX, and common GND.

• Works with 3.3 V MCU logic (as shown in diagram).

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Installation Notes

• Mount the sensor face to a flat, rigid surface; fix tightly to avoid inclination error.

• Keep the sensor’s measurement axis parallel to the target axis; misalignment between Axis A and Axis B introduces angle errors.

• Default installation is horizontal; vertical installation is supported when required.

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Product Introduction (from card)

1. Built-in high-precision inclination unit measuring static gravity acceleration and inclination, enabling tilt and pitch relative to the horizontal plane.

2. Interfaces optional: RS232, RS485, or TTL level (Modbus).

3. High precision, good stability, easy to use for industrial inclination measurement, automation control, and platform attitude.

4. IP67 protection, aluminum shell, strong anti-electromagnetic interference, stable performance.

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Typical Applications

• Elevator equipment

• Tower-crane equipment

• Turntables and rotary platforms

• Smart/AGV cars; car chassis tuning

• Medical equipment

• Solar inclination monitoring

• More smart applications as needed

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What’s Included

• SINDT01-TTL or SINDT02-TTL sensor (per selection) with attached cable (approx. 1 m).

• PC software download (Modbus communication) and documentation.

Details

Dual axis tilt sensor with MEMS module, IP67 protection, Kalman filter, horizontal/inclination/angle measurement.

WitMotion SINDT01/02-TTL tilt sensor with free PC software, Modbus communication, inclination accuracy 0.1°, displays real-time angles X, Y, Z on laptop interface.

Sensor motion state visualized intuitively with four simulations: car, head, plane, cube. Real-time changes displayed on data curves, showing x, y, z axis values over time for precise monitoring.

WitMotion SINDT01/02-TTL tilt sensor offers high-precision measurement, multiple interfaces, IP67 protection, and aluminum housing. Ideal for elevators, cranes, smart cars, medical devices, and solar tracking systems.

WitMotion SINDT01-TTL tilt sensor operates on 5V-36V, offers 25mA current, Modbus TTL/232/485, 0.1° accuracy, IP67 rating, -40°C to +85°C range, and measures 41×36×3.4mm.

Mount the tilt sensor on a flat, stable surface parallel to the measured axis. Improper installation leads to errors. See figures for correct alignment and placement.

Supporting development materials: STM32, Arduino serial library, sample programs, no schematic source code.

Wiring connection diagram for WitMotion SINDT01/02-TTL Tilt Sensor. TTL PIN Definition: RED (VCC 5V), YELLOW (TX), GREEN (RX), BLACK (GND). RS485 PIN Definition: RED (VCC 5-36V), YELLOW (A), GREEN (B), BLACK (GND). MCU PIN Definition: VCC (5~36V), TX, RX, GND connected to MCU with 3.3V power supply. Connections illustrated between sensor, USB module, laptop, and MCU. Color-coded wires ensure proper signal transmission and power supply.