Part Number: 0729-1765-99
Potential alternative for the following AAL series inclinometer part numbers from TE Connectivity/Measurement Specialties/HL Planar: NS-2/AAL2-UDD, NS-5/AAL2-UDD, NS-10/AAL2-UFG, NS-10/AAL2-UDG, NS-15/AAL2-UDG, NS-30/AAL2-UDN.
Features
- ±25° operating range, ±10° linear range inclinometer
- Dual/two-axis measurement inclinometer
- Simple to use analog and RS-232 communications
- Minimal drift over the lifetime compared to MEMS devices
- Wide voltage supply range of 7 V DC to 16 V DC
- Low current device drawing 20 mA at 12 V DC; low power consumption
- PCB board-level design for simple integration
- Superior performance in extreme temperatures and environments
- Excellent customer support
Features
- ±25° operating range, ±10° linear range inclinometer
- Dual/two-axis measurement inclinometer
- Simple to use analog and RS-232 communications
- Minimal drift over the lifetime compared to MEMS devices
- Wide voltage supply range of 7 V DC to 16 V DC
- Low current device drawing 20 mA at 12 V DC; low power consumption
- PCB board-level design for simple integration
- Superior performance in extreme temperatures and environments
- Excellent customer support
Analog Interface | Analog 0 to 5 V DC |
Digital Interface | RS-232 |
Supply Voltage | 7 to 16 V DC |
Supply Current | 20 mA @ 12 V DC |
Operating Range | ±25º |
Linear Range | ±10º |
Axes of Measurement | 2 |
Linearity (% of ±10°) | ≤1.0% |
Repeatability | ±0.005° |
Resolution | ≤0.0003° |
Null Offset | ±2° |
Cross Axis (Roll) Sensitivity | ≤0.03%° per degree |
Long Term Stability/Drift | ≤0.005° |
Null Temperature Coefficient | ≤0.0002° per °C |
Scale Temperature Coefficient | 0.075% per °C |
Materials | Contains magnetic metals |
Operating Temperature | -40 °C to 85 °C |
Storage Temperature | -40 °C to 100 °C |
Time Constant (63.2% of output) | ≤1 second |
Linear Range

Operating Range

Housing | None |
Electrical Connections | 8 pin, 0.1" spacing |
Weight | 32 g |
Length | 45 mm (1.78”) |
Width | 45 mm (1.78”) |
Height | 17 mm (0.65”) |
Hole Center | 39 mm (1.53”) |

Pin 1 | GND |
Pin 2 | GND |
Pin 3 | Vcc |
Pin 4 | GND |
Pin 5 | RX |
Pin 6 | X |
Pin 7 | Y |
Pin 8 | TX |

RS-232 Information
Baud Rate | 9600 (default, selectable up to 115200) |
Data Bits | 8 |
Parity | None |
Stop Bits | 1 |
RS-232 Commands
‘x’ or ‘X’ | X axis output (0 to 65535) |
‘y’ or ‘Y’ | Y axis output (0 to 65535) |
‘t’ or ‘T’ | Temperature output (0 to 1023) |
‘s’ or ‘S’ | Output X, Y, temperature at set intervals |
‘r’ or ‘R’ | Stop timed interval output |
‘1’ to ‘5’ | Set delay (in seconds) for set intervals |
‘v’ or ‘V’ | Product information and version |
‘B1’ to ‘B5’ | Set baud rate to: ‘B1’ – 9600 |
‘B2’ – 19200 | |
‘B3’ – 38400 | |
‘B4’ – 57600 | |
‘B5’ – 115200 | |
‘?’ | List all commands |
Accurate and Reliable Inclinometer for Precise Tilt Measurement
The 0729-1765-99 dual-axis analog and RS-232 inclinometer simplifies accurate tilt measurement, providing dependable performance for demanding applications. Designed specifically for structural monitoring, heavy machinery, aerial platforms, and other environments requiring durability and precision. The 0729-1765-99 inclinometer features a ±25° operating range, precise and dependable tilt readings through analog outputs (0 to 5 volts) and RS-232 digital communications, making it easy to integrate into various systems.
This inclinometer utilizes two Fredericks 0703-1602-99 mid-range single-axis electrolytic tilt sensors mounted on our 1-6200-012 16-bit analog and RS-232 signal conditioner. Together, they deliver highly accurate and stable measurements with minimal drift, greatly surpassing MEMS-based inclinometer alternatives. The electrolytic sensors’ design provides consistent accuracy over the product’s lifespan, making the 0729-1765-99 an ideal solution for critical tasks requiring long-term precision.
Built for Dependability and Easy Integration
At The Fredericks Company, we carefully manufacture every tilt sensor, inclinometer, and tilt switch, ensuring consistent, reliable performance and quality. Our detailed manufacturing process means every inclinometer is precise, dependable, and meets our strict tolerances. This attention to detail helps our products stand apart from others, ensuring you receive reliable measurements every time.
The 0729-1765-99 inclinometer is designed for easy setup and use. It quickly connects via an 8-pin connector with standard 0.1” spacing. Users can easily access precise tilt measurements or configure settings using simple RS-232 commands through a serial terminal like our web serial terminal, including options for adjustable baud rates from 9600 up to 115200.
To further support integration, we can provide detailed application notes, STEP files, and other online resources. Whether you’re new to tilt measurement technology or an experienced professional, you’ll find these resources helpful and straightforward.
Compact and Versatile for Diverse Applications
The 0729-1765-99 analog and RS-232 inclinometer offers versatility, making it suitable for numerous demanding applications. Engineers and construction professionals use this inclinometer extensively to monitor structural stability in buildings, bridges, and tunnels. It excels in construction machinery and elevating work platforms, ensuring accurate leveling and operational safety.
Its precise measurements make it valuable in medical device positioning, where accuracy is critical for patient care. Researchers and scientists depend on this inclinometer for experiments requiring exact tilt measurements.
This inclinometer is also well-suited for railway monitoring applications. Railways require precise tilt measurements to detect even slight changes in railway tracks and structures, helping prevent accidents and ensuring safe operations. Its robust construction and wide operating temperature range (-40 °C to 85 °C) make it suitable for the challenging conditions typically found in railway environments.
Despite its powerful capabilities, the 0729-1765-99 is compact and lightweight, measuring just 45mm by 45mm by 17mm and weighing 32 grams. Its small footprint allows easy installation on various equipment, from robust industrial machines to delicate instruments. It operates reliably in temperatures from -40 °C to 85 °C, making it suitable for both indoor and outdoor environments.
Exceptional Accuracy and Consistent Performance
The 0729-1765-99 inclinometer provides outstanding measurement accuracy with ±0.005° repeatability and a remarkable resolution better than ±0.0003°. It maintains consistent performance even under varying temperatures, showing minimal drift (≤0.005°) and exceptional long-term stability.
This inclinometer operates efficiently with a supply voltage ranging from 7 to 16 volts DC, consuming only 20 mA at 12 V DC, making it practical for diverse applications. For optimal results, we recommend mounting the device horizontally and isolating it from vibrations.
Product Documentation
0729-1765-99 Datasheet |
0729-1765-99 STEP File |
Arduino Analog Communications INO File |
Arduino RS-232 Communications INO File |
Application Notes
Tools
Angle Measurement Converter |
Web Serial Terminal |
Videos
What Is An Electrolytic Tilt Sensor? |
Brochures
Tilt Measurement Product Catalog |
Download STEP File
Part Number | Description | STEP File |
0729-1765-99 | ±25° Analog/RS-232 Inclinometer | Download |