Verified Accurate Electronic Inclinometers & Tilt Sensors for Precision Measurement, Safety, and Control

Rieker Inc. designs and manufactures verified accurate electronic inclinometers and tilt sensors engineered for precision measurement, safety, and control in the most demanding environments.
Built on decades of field-proven expertise, Rieker sensors combine rugged mechanical design with accuracy-proven MEMS and liquid-capacitive technologies, delivering dependable measurement of slope, gradient, pitch, roll, and ball banking.
Each Rieker inclinometer is calibrated and accuracy verified to ensure consistent performance across industrial, construction, mining, energy, transportation, aerospace, and safety applications—where reliability and verified accuracy protect people, equipment, and outcomes.

Products

Features

Options

H3 Series

Flex Series

View Series

Features

  • Single-axis angle measurement, scalable anywhere within the full ±180° calibrated range
  • Rugged aluminum housing, environmentally sealed to IP67 for harsh industrial conditions
  • Fully temperature compensated over −40 °C to +85 °C operating range
  • Multiple simultaneous outputs: Current (4–20 mA or 0–20 mA), Voltage (0–5 V or 0–10 V), and RS-485 digital
  • Configurable open-collector switch output (trip above, below, between, or outside a window)
  • Reverse-polarity, overvoltage, and overcurrent protection; EMC-shielded design
  • Shock and vibration resistant, suitable for OEM or field use

Options

  • Power Supply: +11 to 36 V DC (non-regulated)
  • Analog Accuracy: ±0.015 % FS over temperature; < ±0.005 % FS null accuracy @ 25 °C
  • Resolution: < 0.005 ° (16-bit A/D resolution)
  • Digital Output: RS-485 half-duplex (32-bit IEEE packetized float, up to 20 Hz update)
  • Response Rate: user-selectable from 4 Hz to 0.3 Hz
  • Accessories: Flex Series Configurator Kit (Flexware™ Toolkit + USB Interface) and LCD Display Box (0.1 ° resolution)
  • Mounting: vertical plane, two #6 or M3.5 holes; dimensions 2.60 × 1.95 × 1.10 in [66 × 49.5 × 27.9 mm]

 

H4 Series

Flex Series

View Series

Features

  • Single-axis electronic inclinometer built on Rieker’s Flex Series platform, providing verified accurate angular measurement for industrial, transportation, and safety applications
  • Available in ±30°, ±45°, and ±70° models, or as the H4360 Flex variant configurable up to 360° full scale – adaptable for OEM and field system integration.
  • Temperature-compensated MEMS sensor ensures stability and accuracy over –40 °C to +85 °C
  • Multiple output options: Analog (0–5 V DC) or Digital Serial (RS-232) available depending on model
  • Rugged die-cast zinc housing, environmentally sealed to IP67 for reliable operation in harsh conditions
  • Reverse-polarity, over-voltage, and EMC protection; vibration- and shock-resistant design for long-term durability

 

Options

  • Measurement Ranges: ±30° | ±45° | ±70° | ±180° (custom scaling available)
  • Outputs: Analog (0–5 V DC), Digital (RS-232), or hybrid configurations
  • Power Supply: 8–30 V DC standard; optional regulated 5 V DC input
  • Mounting: surface or bracket mount, compatible with Flex Series footprint
  • Accessories: RDI and RAD digital displays, Flexware™ Configurator Kit for range/output setup, and OEM cable assemblies
  • Model Option – H4360 Flex Variant: adds 360° single-axis capability, RS-485 communication, and 4–20 mA analog output, extending the H4 Series for full-rotation applications

H6 Series
Flex Series

View Series

Features

  • Dual-axis inclinometer built on Rieker’s Flex Series platform for verified accurate angle measurement
  • Multiple simultaneous outputs: Analog (current or voltage), Open-collector Switch, RS-485, and CAN bus (J1939 or CANopen)
  • Fully temperature compensated MEMS sensors for long-term stability from −40 °C to +85 °C
  • IP68-rated aluminum housing with rugged, field-proven construction
  • Reverse polarity, overvoltage, and EMC protection for dependable operation in harsh electrical environments
  • Accuracy Proven: ±0.1º Typical; ±0.15° Max, tested and verified across full operating range

Options

  • Outputs: Voltage (0–5 V, 0–10 V), Current (4–20 mA), RS-485, CAN J1939/CANopen, or Switch
  • Power Supply: 8–30 V DC
  • Mounting: horizontal or vertical plane; orientation set via Flex Dev Kit or factory calibration
  • Accessories: Flexware™ Configurator Kit, USB interface cable, RDI/RAD digital displays, and OEM harness kits

H6EX Series
Hazardous Locations

Flex Series

View Series

Features

  • Dual-axis inclinometer built on Rieker’s Flex Series platform, delivering verified accurate angle measurement in hazardous and explosive environments
  • Intrinsically Safe design certified to ATEX, IECEx, CSA, and UKEX standards
    • H6EX-A: Approved for ATEX/IECEx Zones 0, 1, 20 & 21
    • H6EX-B: Approved for ATEX/IECEx Zones 2 & 22
  • 316 stainless steel housing provides exceptional corrosion resistance and environmental protection; rated IP68
  • Temperature-compensated MEMS sensors ensure accuracy and long-term stability across −40 °C to +85 °C
  • Multiple simultaneous outputs: Analog (current or voltage) and RS-485 digital communication
  • Accuracy Proven: ±0.1° typical and 0.15° max precision, calibrated and validated across the full temperature range
  • Designed for industrial, oil & gas, mining, offshore, and process control applications

Options

Measurement Range: configurable up to ±180° full scale

Outputs: 4–20 mA, 0–5 V, or RS-485 (factory configurable)

Power Supply: 11–36 V DC

Mounting: horizontal or vertical plane; orientation set via Flexware™ Toolkit

Temperature Compensation: full-range digital correction ensures minimal drift over time

Accessories: certified connection cables, configuration interface, and digital displays (RDI/RAD compatible)

Certifications: ATEX/IECEx/CSA/UKEX (specific per model variant – H6EX-A, H6EX-B

NG Series

View Series

Features

  • Precision mechanical inclinometers providing direct visual angle indication with ±5° full-scale range
  • Scale increments: 0.5° for fine resolution and easy readability
  • Housing: black compression-molded acetal copolymer resin, extremely tough for all-weather environments
  • Operating Temperature: −50 °C to +70 °C (−58 °F to +158 °F)
  • Large, high-contrast engraved scale for fast, accurate readings
  • Mounting: panel-mount configuration for OEM or retrofit applications

Options

  • Scale Range: ±5° (0.5° increments)
  • Scale Style:
    • 5002P: Alphabetized scale (A–U, left-to-right)
    • 5002R: Numbered scale (0–20, left-to-right)
  • Housing: compression-molded acetal copolymer resin, weather-resistant black finish
  • Calibration: factory-verified accuracy
  • OEM customization: face markings, scale layout, branding available

NGi Series

View Series

Features

  • Liquid-capacitive inclinometer with integrated electronics; temperature compensated for stability.
  • Two-wire, 4–20 mA current loop output (noise-robust; power from loop).
  • Supply: +8…+30 V DC non-regulated; either polarity.
  • Model ranges: ±10° (NG2i) | ±30° (NG3i) | ±80° (NG4i).
  • Housing: 30% glass-filled PBT plastic, IP65 environmental protection.
  • Operating temp: −40 °C to +85 °C; response time <0.3 s (1–3 s optional).

Options

  • Time constant / rise time options (1 s, 2 s, 3 s).
  • Mounting: vertical surface using stainless mounting ring (Ø 67 mm overall).
  • Cable: 0.5 m pigtail leads; sensor electronically isolated from housing.
  • Accuracy characteristics: high measurement accuracy, minimal linearity errors; EMC-protected.

NGu Series

View Series

Features

  • Single-axis liquid-capacitive inclinometer; 0–5 V DC analog output.
  • Supply: +8…+30 V DC non-regulated; integrated 5 V excitation.
  • Model ranges: ±10° (NG2U) | ±30° (NG3U) | ±80° (NG4U).
  • Housing: 30% glass-filled PBT plastic, IP65 environmental protection.
  • Operating temp: −40 °C to +85 °C; response time <0.3 s (1–3 s optional).
  • Noise immunity & stability: hysteresis-free signal; very low relative linearity errors; EMC certified.

Options

  • Sensitivity (per range): 200 mV/° (±10°), 66.67 mV/° (±30°), 25 mV/° (±80°).
  • Mounting: vertical surface with supplied stainless mounting ring (same envelope as NGi).
  • Cable: 0.5 m shielded pigtail leads; sensor galvanically isolated from housing.

SB1i/SB2i Series

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Features

  • Compact single- and dual-axis inclinometers providing verified accurate angular measurement in industrial, vehicle, and construction applications
  • Available as SB1i (single-axis) or SB2i (dual-axis) models with multiple simultaneous outputs
  • Rugged aluminum housing, sealed to IP67, ensures long-term durability in harsh environments
  • Temperature-compensated MEMS sensors for repeatable accuracy over −40 °C to +85 °C
  • Flexible signal options: Voltage (0–5 V, 0–10 V), Current (4–20 mA), and RS-485 digital
  • Built on a common electronics platform with overvoltage and EMC protection for dependable operation

Options

  • Measurement Ranges: ±10° | ±30° | ±60° (model dependent)
  • Power Supply: 8–30 V DC
  • Outputs: Voltage, Current, RS-485, or mixed configurations
  • Mounting: vertical or horizontal surface; two-hole pattern
  • Accessories: RDI / RAD digital displays, OEM cable assemblies
  • Housing: anodized aluminum body with sealed connector interface

SB1u/SB2u Series

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Features

  • Single- and dual-axis electronic inclinometers providing verified accurate angle measurement in larger, universal housings for OEM integration
  • Available as SB1U (single-axis) and SB2U/SBG2U (dual-axis) models
  • Rugged metal housing, environmentally sealed to IP67, designed for industrial and outdoor use
  • Temperature-compensated MEMS sensors for stable performance from −40 °C to +85 °C
  • Output options: Voltage (0–5 V or 0–10 V), Current (4–20 mA), and Digital RS-485 (variant dependent)
  • Shock- and vibration-resistant, built for long-term accuracy in demanding environments

Options

  • Measurement Ranges: ±10° | ±30° | ±60° (model dependent)
  • Power Supply: 8–30 V DC
  • Outputs: Voltage, Current, or RS-485 (per model selection)
  • Mounting: flat base surface with standardized bolt pattern; orientation defined at installation
  • Accessories: RDI/RAD digital displays and OEM cable assemblies
  • Housing: universal anodized aluminum enclosure with sealed connector interface

XB Series

Extreme and Sub-Sea Environments

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Features

  • Heavy-duty stainless-steel housing, an alternative to the SB aluminum housing
  • Available for inclination or acceleration measurement
  • Single or dual-axis configurations
  • 0–5 V or 4–20 mA outputs (according to sensor used)
  • Up to ±80° measuring range
  • Seawater-resistant (V4A) stainless steel, pressure-resistant 10 bar (1 MPa) / 100 m water depth
  • Corrosion-resistant, rigid four-point attachment of 3.2 mm circuit board
  • Sensor and electronics galvanically isolated from housing
  • Environmental protection: IP68; operating temperature –40 ° to +85 °C

Options

  • Cable entry: liquid-tight PG9 (V4A steel with strain relief, 8–10 mm diameter) or SubConn® underwater plug connector
  • Mounting: flat vertical or horizontal surface (specified at time of order)
  • Weight: 4 lb (1.82 kg without cable)
  • Storage temperature: –45 ° to +90 °C
  • Available as single- or dual-inclinometer package (same sensor specifications/outputs as SB packages).
  • Contact Rieker Inc. to discuss your specific needs.

RDI Series

Remote Digital Inclinometers and Display Bundles

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Features

  • Remote digital display unit for Rieker electronic inclinometers and sensors (compatible with H4, H6, NG, SB, XB, and other models)
  • Provides clear, real-time digital angle indication on an easy-to-read LCD display
  • Designed for panel or enclosure mounting in vehicles, equipment cabs, or fixed installations
  • Supports both single- and dual-axis sensors, depending on connected model
  • Operates from 8–30 V DC, suitable for industrial and vehicle systems
  • Accuracy Proven: factory-calibrated for seamless pairing with corresponding inclinometer models
  • Compact, rugged enclosure built for field reliability and vibration resistance

Options

  • Display Format: single- or dual-axis readout (degrees, percent grade, or custom engineering units)
  • Outputs: pass-through or data logging depending on model configuration
  • Power Supply: 8–30 V DC (standard); optional connectorized cabling sets available
  • Mounting: panel mount or remote bracket configuration
  • Cabling: pre-terminated harnesses for direct connection to Rieker sensors
  • Environmental Protection: sealed faceplate with conformal-coated electronics for moisture and dust resistance
  • Custom Configurations: specialized firmware, display ranges, or units available by request – Call Rieker to discuss your application and configuration.