Epson IMU M-G552 Series – Overview (IP67)

PDG seriesEntry modelThe entry model of Epson's PDG series: a factory-calibrated 6-axis IMU for robots, AGVs and machines at a sensible cost.Same 24 × 24 × 10 mm, 10 g footprint as the higher-performance PDG models, so your design can grow with your product.3°/hGyro bias instability0.1°/√hAngular random walk10g24 × 24 × 10 mm2000SpsMax. output rate16mAat 3.3 VApplicationsWhere the M-G330PDG fits bestRobots, AGVs and AMRsHeading and tilt to support odometry and SLAM in service and logistics robots.Agricultural and construction machinesAttitude for guidance, levelling and implement control.Low-cost UAVs and UGVsStable attitude where the navigation filter gets frequent GNSS updates.Motion trackingOrientation and vibration capture in industrial equipment.PerformanceAllan deviation and key specificationsFor systems that fuse the IMU with odometry, SLAM or GNSS, the M-G330PDG offers solid stability at the lowest cost in the series.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability3 °/h (average)Angular random walk0.1 °/√hGyro range±400 °/sAccelerometer range±8 g or ±16 gAccelerometer bias instability34 µgVelocity random walk0.03 (m/s)/√hOutput rateup to 2000 SpsInterfaceUART or SPISupply3.3 V, 16 mA typ.Operating temperature−40 to +85 °CSize, weight24 × 24 × 10 mm, 10 gTypical values from the Epson data sheet. The full data sheet is available on request.PDG seriesOne footprint, three performance levelsAll three PDG models share the 24 × 24 × 10 mm footprint and connector. Move up or down in performance without a new board layout. Need longer heading hold? Step up on the same board.M-G330PDGEntryBias instability3 °/hARW0.1 °/√hGyro stabilityM-G366PDGBalancedBias instability1.2 °/hARW0.08 °/√hGyro stabilityM-G370PDGLowest driftBias instability0.8 °/hARW0.06 °/√hGyro stabilityFAQFrequently asked questionsIs the M-G330PDG accurate enough for my robot?For robots and machines that fuse the IMU with wheel odometry, SLAM or GNSS, 3 °/h bias instability is usually sufficient. If the IMU has to carry heading alone for longer periods, a higher PDG model is the better choice.Can I upgrade later without a redesign?Yes. The M-G330PDG, M-G366PDG and M-G370PDG share footprint and connector.Which interfaces are supported?UART or SPI; one of the two is connected.Can I borrow an evaluation kit?Yes, for qualified projects we lend an evaluation kit free of charge.Compare it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G570Top performanceIP67RS-422Epson's most precise IMU in the rugged housing: 0.5 °/h bias instability and 0.04 °/√h angular random walk, enabled by Epson's multi-sensor technology.For surveying, georeferencing and navigation tasks where small errors add up. RS-422 up to 2 Mbit/s, 9 to 24 V supply, less than 1 W, IP67 metal case.0.5°/hGyro bias instability0.04°/√hAngular random walk14µgAccel. bias instability2000SpsMax. output rate< 1WPowerApplicationsWhere the M-G570PR2 fits bestSurveying and georeferencingAttitude for mobile mapping, LiDAR and photogrammetry systems with high accuracy demands.Marine positioningHeading and motion reference for dynamic positioning and survey vessels.Stabilized sensor platformsOptical and geophysical sensors that must stay on target.UAV navigationLarger UAVs that must bridge GNSS gaps with minimal drift.PerformanceAllan deviation and key specificationsSame housing as the M-G552 family, but clearly lower noise and drift. The M-G570PR2 sits lowest across the whole curve.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability0.5 °/hAngular random walk0.04 °/√hGyro range±475 °/sAccelerometer range±15 gAccelerometer bias instability14 µgVelocity random walk0.012 (m/s)/√hOutput rateup to 2000 SpsInterfaceRS-422, 230.4 kbit/s … 2 Mbit/sSupply9 … 24 V, < 1 WOperating temperature−30 … +70 °CHousing65 × 60 × 30 mm, 150 g, IP67Typical values from the Epson data sheet. The full data sheet is available on request.FamilyThe rugged Epson IMUs at a glanceAll three share the 65 × 60 × 30 mm IP67 housing.M-G552M-G552Px30Bias instability1.2 °/hARW0.08 °/√hInterfacesRS-422 · CAN · J1939M-G552PR80M-G552Px80Bias instability0.8 °/hARW0.06 °/√hInterfacesRS-422 · CAN · J1939M-G570PR2Top performanceBias instability0.5 °/hARW0.04 °/√hInterfaceRS-422FAQFrequently asked questionsWhat is multi-sensor technology?Epson combines several sensor elements per axis and processes them together. This lowers noise and drift compared with a single sensor element.How long can it hold heading without GNSS?Bias instability gives a rough lower bound of about 0.5° per hour of gyro-related heading error. Temperature changes and vibration add to this, so we recommend a test in your setup.Is there a CANopen or J1939 version?The M-G570PR2 uses RS-422. For CANopen or J1939 in the same housing, see the M-G552 series.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G355Functional safetyIEC 61508 SIL 1UART · SPIA compact 6-axis IMU that conforms to SIL 1 under IEC 61508, for machines where motion data feeds safety-related functions.Performance of the M-G366PDG class, 1.2 °/h and 0.08 °/√h, in the familiar 24 × 24 × 10 mm, 10 g format with UART or SPI.SIL 1IEC 615081.2°/hGyro bias instability0.08°/√hAngular random walk±450°/sGyro range10g24 × 24 × 10 mmApplicationsWhere the M-G355QDG fits bestAgricultural machineryDriver assistance and automation functions that need qualified motion data.Construction equipmentGuidance, levelling and stability functions with a safety case.Industrial robotsMotion and orientation tracking in automated cells and mobile robots.Safety-related automationA component with SIL 1 conformity simplifies your own safety argument.PerformanceKey specificationsValues from the Epson data sheet M-G355QDG0.ParameterTypical valueFunctional safetyIEC 61508, SIL 1Gyro bias instability1.2 °/hAngular random walk0.08 °/√hGyro noise density6.9 (°/h)/√HzGyro range±450 °/sAccelerometer range±8 g / ±16 gAccelerometer bias instability24 µgInterfaceUART or SPISupply3.3 VOperating temperature−40 … +85 °CSize, weight24 × 24 × 10 mm, 10 gTypical values from the Epson data sheet. The full data sheet is available on request.FamilyWith or without SIL 1Same format, same performance class. Choose the M-G355QDG when your safety concept needs a qualified component.M-G355QDGSIL 1Bias instability1.2 °/hFunctional safetyIEC 61508 SIL 1M-G366PDGPDG seriesBias instability1.2 °/hFunctional safety—FAQFrequently asked questionsDoes SIL 1 make my machine safe?No component does that alone. The M-G355QDG conforms to SIL 1 under IEC 61508 as a component, which supports your safety argument. The system-level assessment stays with the machine builder. Safety documentation is available on request.Is it an automotive part?No. It targets agricultural, construction and industrial machines. For automotive yaw-rate sensing, see the XV4311BD.Can I start development with a PDG module?Yes. The format is the same, so you can prototype with a PDG IMU and switch to the M-G355QDG for the safety-related product.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

PDG seriesBalanced performanceThe balanced choice in Epson's PDG series: low drift for stable heading and attitude, in a 10 g module for drones, gimbals and robots.Three gyroscopes and three accelerometers, factory-calibrated from −40 to +85 °C, with up to 2000 samples per second over UART or SPI.1.2°/hGyro bias instability0.08°/√hAngular random walk10g24 × 24 × 10 mm2000SpsMax. output rate16mAat 3.3 VApplicationsWhere the M-G366PDG fits bestUAV and drone payloadsAttitude and heading for flight controllers and camera gimbals where every gram counts.Platform stabilizationAntennas, EO/IR sensors and handheld gimbals that need a calm, low-noise rate signal.Mobile robots and AGVsDead reckoning between wheel odometry, SLAM or GNSS updates.Portable surveyingHandheld and backpack systems with tight power budgets.PerformanceAllan deviation and key specificationsRead the curve from left to right: on short time scales random noise (ARW) dominates, at the minimum the gyro reaches its bias instability.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability1.2 °/h (average)Angular random walk0.08 °/√hGyro range±450 °/sAccelerometer range±8 g or ±16 gAccelerometer bias instability24 µgVelocity random walk0.02 (m/s)/√hOutput rateup to 2000 SpsInterfaceUART or SPISupply3.3 V, 16 mA typ.Calibrated temperature range−40 to +85 °CSize, weight24 × 24 × 10 mm, 10 gTypical values from the Epson data sheet. The full data sheet is available on request.PDG seriesOne footprint, three performance levelsAll three PDG models share the 24 × 24 × 10 mm footprint and connector. Move up or down in performance without a new board layout. Not sure which one you need? Use the IMU selection guide.M-G330PDGEntryBias instability3 °/hARW0.1 °/√hGyro stabilityM-G366PDGBalancedBias instability1.2 °/hARW0.08 °/√hGyro stabilityM-G370PDGLowest driftBias instability0.8 °/hARW0.06 °/√hGyro stabilityFAQFrequently asked questionsWhat does 1.2 °/h bias instability mean in practice?It describes the slow wander of the gyro offset. Over minutes to hours it dominates heading drift, so a lower value lets a vehicle hold its heading longer between GNSS or vision updates.Can I use UART and SPI at the same time?No. The M-G366PDG supports either UART or SPI, and you connect one of the two.Does it need its own temperature calibration?Epson calibrates bias, scale factor and axis alignment over −40 to +85 °C and stores the parameters in the IMU. They are applied automatically after power-on.Can I test it before ordering?Yes. For qualified projects we lend you an evaluation kit free of charge, so you can compare it with a second model in your own system.Compare it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G370Lowest noiseUART · SPIThe low-noise IMU for gimbals and stabilized optics: 0.03 °/√h angular random walk in a 24 × 24 × 10 mm, 10 g module.Half the angle noise of the M-G370PDG with the same 0.8 °/h bias instability. The ±200 °/s range concentrates resolution where stabilization happens.0.03°/√hAngular random walk0.8°/hGyro bias instability±200°/sGyro range10g24 × 24 × 10 mm16mAat 3.3 VApplicationsWhere the M-G370PDT fits bestCamera and EO/IR gimbalsSharp images at long focal lengths need a calm rate signal.Antenna and SATCOM pointingStable pointing on moving vehicles and vessels.Mapping payloadsAttitude for LiDAR and photogrammetry where angle noise blurs the point cloud.Precision navigationLow noise and low drift for ground and aerial vehicles.PerformanceAllan deviation and key specificationsOn the left of the curve the M-G370PDT is clearly quieter than the PDG models. At long averaging times it meets the M-G370PDG.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueAngular random walk0.03 °/√hGyro bias instability0.8 °/hGyro noise density2.52 (°/h)/√HzGyro range±200 °/sAccelerometer range±8 g / ±16 gAccelerometer bias instability24 µgOutput rateup to 2000 SpsInterfaceUART or SPISupply3.3 V, 16 mA typ.Operating temperature−40 … +85 °CSize, weight24 × 24 × 10 mm, 10 gTypical values from the Epson data sheet. The full data sheet is available on request.FamilySame footprint as the PDG seriesDevelop with one board layout and choose the sensor by application.M-G366PDGBalancedBias instability1.2 °/hARW0.08 °/√hGyro range±450 °/sM-G370PDGLowest driftBias instability0.8 °/hARW0.06 °/√hGyro range±450 °/sM-G370PDTLowest noiseBias instability0.8 °/hARW0.03 °/√hGyro range±200 °/sFAQFrequently asked questionsM-G370PDT or M-G370PDG?Both have 0.8 °/h bias instability. Choose the PDT when angle noise limits your image or pointing quality and ±200 °/s is enough. For vehicles with faster turns and for navigation, the M-G370PDG with ±450 °/s is usually the better fit.Does it fit the same board as the PDG models?Yes. It shares the 24 × 24 × 10 mm footprint and connector with the PDG series.Can it output delta angle and delta velocity?Yes, in addition to rate and acceleration. It also has an external trigger and counter reset input for synchronization.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G552EfficientIP67CANopenA rugged 6-axis IMU in an IP67 metal housing with CANopen, so the IMU joins the CAN network of your vehicle or machine like any other node.The M-G552PC30 is the 1.2 °/h class for machines that fuse the IMU with GNSS or odometry. It runs on 9 to 32 V vehicle power, outputs up to 2000 samples per second and works from −30 to +80 °C.1.2°/hGyro bias instability0.08°/√hAngular random walkIP67Metal housing9–32VVehicle powerCANopenInterfaceApplicationsWhere the M-G552PC30 fits bestMobile machineryAttitude and heading for automated agricultural, construction and municipal machines.AGVs and outdoor robotsDead reckoning between GNSS, odometry and SLAM updates.Platform stabilizationAntennas, cameras and work platforms on moving vehicles.Tilt and slope monitoringRollover warning and levelling on uneven ground.PerformanceAllan deviation and key specificationsRugged Epson IMUs share the same 65 × 60 × 30 mm housing. The lower the curve, the longer your system holds heading without aiding.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability1.2 °/hAngular random walk0.08 °/√hGyro range±450 °/sAccelerometer range±8 g / ±16 g (selectable)Accelerometer bias instability24 µgVelocity random walk0.02 (m/s)/√hOutput rateup to 2000 spsInterfaceCANopenSupply9 … 32 V, < 0.6 WOperating temperature−30 … +80 °CHousing65 × 60 × 30 mm, 115 g, metal, IP67Typical values from the Epson data sheet. The full data sheet is available on request.M-G552Four variants: pick interface and performanceSame housing for all M-G552 models. Change the interface or the performance class without redesigning the mounting.Interface1.2 °/h0.8 °/hRS-422M-G552PR30M-G552PR80CANopenM-G552PC30M-G552PC80FAQFrequently asked questionsWhich variant do I need?Choose the interface your system already speaks, then the performance class. The 1.2 °/h models suit machines with GNSS or odometry aiding; the 0.8 °/h models, such as the M-G552PC80, hold heading longer on their own. The M-G570PR2 is the top model in the same housing.Does it replace the M-G552PR1 / PR7?Yes. The 30 and 80 models are the current generation and replace the earlier Px1 and Px7 variants in the same housing.Is the housing really waterproof?Yes, the metal housing is rated IP67 when the mating connector is also IP67. That makes it suitable for outdoor machines, wash-down and marine use.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G552PrecisionIP67CANopenA rugged 6-axis IMU in an IP67 metal housing with CANopen, so the IMU joins the CAN network of your vehicle or machine like any other node.The M-G552PC80 is the 0.8 °/h class for longer heading hold and more demanding guidance. It runs on 9 to 32 V vehicle power, outputs up to 2000 samples per second and works from −30 to +80 °C.0.8°/hGyro bias instability0.06°/√hAngular random walkIP67Metal housing9–32VVehicle powerCANopenInterfaceApplicationsWhere the M-G552PC80 fits bestMobile machineryAttitude and heading for automated agricultural, construction and municipal machines.AGVs and outdoor robotsDead reckoning between GNSS, odometry and SLAM updates.Platform stabilizationAntennas, cameras and work platforms on moving vehicles.Tilt and slope monitoringRollover warning and levelling on uneven ground.PerformanceAllan deviation and key specificationsRugged Epson IMUs share the same 65 × 60 × 30 mm housing. The lower the curve, the longer your system holds heading without aiding.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability0.8 °/hAngular random walk0.06 °/√hGyro range±450 °/sAccelerometer range±8 g / ±16 g (selectable)Accelerometer bias instability24 µgVelocity random walk0.02 (m/s)/√hOutput rateup to 2000 spsInterfaceCANopenSupply9 … 32 V, < 0.6 WOperating temperature−30 … +80 °CHousing65 × 60 × 30 mm, 115 g, metal, IP67Typical values from the Epson data sheet. The full data sheet is available on request.M-G552Four variants: pick interface and performanceSame housing for all M-G552 models. Change the interface or the performance class without redesigning the mounting.Interface1.2 °/h0.8 °/hRS-422M-G552PR30M-G552PR80CANopenM-G552PC30M-G552PC80FAQFrequently asked questionsWhich variant do I need?Choose the interface your system already speaks, then the performance class. The 1.2 °/h models suit machines with GNSS or odometry aiding; the 0.8 °/h models, such as the M-G552PC80, hold heading longer on their own. The M-G570PR2 is the top model in the same housing.Does it replace the M-G552PR1 / PR7?Yes. The 30 and 80 models are the current generation and replace the earlier Px1 and Px7 variants in the same housing.Is the housing really waterproof?Yes, the metal housing is rated IP67 when the mating connector is also IP67. That makes it suitable for outdoor machines, wash-down and marine use.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G552EfficientIP67RS-422A rugged 6-axis IMU in an IP67 metal housing with full-duplex RS-422 with built-in terminator for long cable runs and electrically noisy surroundings.The M-G552PR30 is the 1.2 °/h class for machines that fuse the IMU with GNSS or odometry. It runs on 9 to 32 V vehicle power, outputs up to 2000 samples per second and works from −30 to +80 °C.1.2°/hGyro bias instability0.08°/√hAngular random walkIP67Metal housing9–32VVehicle powerRS-422InterfaceApplicationsWhere the M-G552PR30 fits bestRail and tunnel surveyingTrack geometry and tunnel profiling with long cables to the measuring computer.Marine and subseaAttitude and heading for ROVs, vessels and towed sensors.Long-range UAVsA rugged inertial reference for larger airframes and payloads.Industrial alignmentCranes, booms and platforms that must stay level.PerformanceAllan deviation and key specificationsRugged Epson IMUs share the same 65 × 60 × 30 mm housing. The lower the curve, the longer your system holds heading without aiding.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability1.2 °/hAngular random walk0.08 °/√hGyro range±450 °/sAccelerometer range±8 g / ±16 g (selectable)Accelerometer bias instability24 µgVelocity random walk0.02 (m/s)/√hOutput rateup to 2000 spsInterfaceRS-422 (230.4 / 460.8 / 921.6 kbps)Supply9 … 32 V, < 0.6 WOperating temperature−30 … +80 °CHousing65 × 60 × 30 mm, 115 g, metal, IP67Typical values from the Epson data sheet. The full data sheet is available on request.M-G552Four variants: pick interface and performanceSame housing for all M-G552 models. Change the interface or the performance class without redesigning the mounting.Interface1.2 °/h0.8 °/hRS-422M-G552PR30M-G552PR80CANopenM-G552PC30M-G552PC80FAQFrequently asked questionsWhich variant do I need?Choose the interface your system already speaks, then the performance class. The 1.2 °/h models suit machines with GNSS or odometry aiding; the 0.8 °/h models, such as the M-G552PR80, hold heading longer on their own. The M-G570PR2 is the top model in the same housing.Does it replace the M-G552PR1 / PR7?Yes. The 30 and 80 models are the current generation and replace the earlier Px1 and Px7 variants in the same housing.Is the housing really waterproof?Yes, the metal housing is rated IP67 when the mating connector is also IP67. That makes it suitable for outdoor machines, wash-down and marine use.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet

M-G552PrecisionIP67RS-422A rugged 6-axis IMU in an IP67 metal housing with full-duplex RS-422 with built-in terminator for long cable runs and electrically noisy surroundings.The M-G552PR80 is the 0.8 °/h class for longer heading hold and more demanding guidance. It runs on 9 to 32 V vehicle power, outputs up to 2000 samples per second and works from −30 to +80 °C.0.8°/hGyro bias instability0.06°/√hAngular random walkIP67Metal housing9–32VVehicle powerRS-422InterfaceApplicationsWhere the M-G552PR80 fits bestRail and tunnel surveyingTrack geometry and tunnel profiling with long cables to the measuring computer.Marine and subseaAttitude and heading for ROVs, vessels and towed sensors.Long-range UAVsA rugged inertial reference for larger airframes and payloads.Industrial alignmentCranes, booms and platforms that must stay level.PerformanceAllan deviation and key specificationsRugged Epson IMUs share the same 65 × 60 × 30 mm housing. The lower the curve, the longer your system holds heading without aiding.Modelled from the typical data sheet values for angular random walk (ARW) and bias instability. The full data sheet contains Epson's measured curves.ParameterTypical valueGyro bias instability0.8 °/hAngular random walk0.06 °/√hGyro range±450 °/sAccelerometer range±8 g / ±16 g (selectable)Accelerometer bias instability24 µgVelocity random walk0.02 (m/s)/√hOutput rateup to 2000 spsInterfaceRS-422 (230.4 / 460.8 / 921.6 kbps)Supply9 … 32 V, < 0.6 WOperating temperature−30 … +80 °CHousing65 × 60 × 30 mm, 115 g, metal, IP67Typical values from the Epson data sheet. The full data sheet is available on request.M-G552Four variants: pick interface and performanceSame housing for all M-G552 models. Change the interface or the performance class without redesigning the mounting.Interface1.2 °/h0.8 °/hRS-422M-G552PR30M-G552PR80CANopenM-G552PC30M-G552PC80FAQFrequently asked questionsWhich variant do I need?Choose the interface your system already speaks, then the performance class. The 1.2 °/h models suit machines with GNSS or odometry aiding; the 0.8 °/h models, such as the M-G552PR80, hold heading longer on their own. The M-G570PR2 is the top model in the same housing.Does it replace the M-G552PR1 / PR7?Yes. The 30 and 80 models are the current generation and replace the earlier Px1 and Px7 variants in the same housing.Is the housing really waterproof?Yes, the metal housing is rated IP67 when the mating connector is also IP67. That makes it suitable for outdoor machines, wash-down and marine use.Can I test it before ordering?Yes. For qualified projects we lend evaluation kits free of charge.Test it in your own system.For qualified projects we lend evaluation kits free of charge. Pricing and availability on request.Request an evaluation kitFull data sheet