Performance envelope
Measurement range: 0.05-50 m (90% reflectivity); 0.05-15 m (10% reflectivity) · Accuracy: ±5 cm (<10 m); 1% (≥10 m), 2σ
Authentic product views from the ERDI product record. Use the controlled mechanical drawing and connector definition for design release.
Open dedicated 3D viewerOEM laser ranging and photonics module
LRF50H High-Speed 50 m LiDAR Distance Sensor for Overhead Cranes, Carriage Distance Control and Industrial Safety
Product model LRF50H
$160 USD / unitBase B2B price; approved quantity tiers are shown below. Shipping included.
LRF50H is a 905 nm direct time-of-flight ranging module specified for 0.05-50 m at 90% reflectivity and 0.05-15 m at 10% reflectivity. Its V3.0 document specifies 20 Hz-10 kHz operation with 1 kHz default, UART communication and a 9-36 V DC input.
ENGINEERING FILES
Technical Downloads
Use the current controlled document revision for design review and confirm the ordered connector and mechanical configuration before release.
B2B PURCHASING
USD / unitVolume Pricing
Published unit prices apply only to the stated quantity band. Configuration, qualification, tax and Incoterm details are confirmed in the quotation.
1–30 piecesBase tier$160 USDPublished unit price
31–500 pieces$80 USDSave 50%
501–999 pieces$70 USDSave 56%
1,000+ piecesLowest unit price$50 USDLowest published price · Save 69%
Detailed LRF50H Specifications
Every value below is bound to the model source named on this page. Qualifiers and test conditions are retained; missing values are not inferred.
Basic ranging performance
| Parameter | Value | Source condition |
|---|---|---|
| Measurement range | 0.05-50 m (90% reflectivity); 0.05-15 m (10% reflectivity) | The two source values remain bound to their stated target reflectivity. The source marks this parameter as measured at 25°C in an indoor environment. |
| Measurement frequency | 20 Hz-10 kHz (default: 1 kHz) | Confirm against the controlled model document |
| Accuracy | ±5 cm (<10 m); 1% (≥10 m), 2σ | Confirm against the controlled model document |
| Repeatability | ±5 cm | Confirm against the controlled model document |
| Ambient-light immunity | 45 m at 100 klx | 90% reflector in an outdoor environment at 25°C, per source footnote. |
| Reported resolution | 1 cm | Front-page feature statement; not an accuracy value |
Optical parameters
| Parameter | Value | Source condition |
|---|---|---|
| Central wavelength | 905 nm | Confirm against the controlled model document |
| Photobiological safety | Class 1 | Confirm against the controlled model document |
| Field of view | About 4 mrad | Confirm against the controlled model document |
| Wavelength for indication | 650 nm (visible red light) | Confirm against the controlled model document |
| Photobiological safety for indication | Class 2 | Confirm against the controlled model document |
Electrical and communication interface
| Parameter | Value | Source condition |
|---|---|---|
| Supply voltage | 9-36 V DC | Confirm against the controlled model document |
| Peak current | 24 V at 100 mA | Confirm against the controlled model document |
| Average current | 24 V at 34 mA | Confirm against the controlled model document |
| Average power consumption | 0.8 W | Confirm against the controlled model document |
| Communication interface | UART | Confirm against the controlled model document |
Mechanical and environmental
| Parameter | Value | Source condition |
|---|---|---|
| Protection level | N/A | Confirm against the controlled model document |
| Dimensions | 38 × 20 × 30 mm | Confirm against the controlled model document |
| Weight | 15 ± 2 g | Confirm against the controlled model document |
| Operating temperature | -20°C to +60°C (no condensation; indication red light automatically turns off below -20°C) | Confirm against the controlled model document |
| Wire specification | 5-pin 1.25 mm terminal, M1250V-05P, with 50 cm tinned loose wire | Confirm against the controlled model document |
| Customization | Available in appearance / structure / output protocol | Confirm against the controlled model document |
Functional Description
The coaxial 650 nm aiming light can be switched on or off to support alignment and installation.
The source states that the aiming light automatically turns off below -20°C and that the specified operating range requires no condensation.
Electrical Interface Definition
Signal names and directions are transcribed from the model source.
| Pin | Signal | Source-stated function |
|---|---|---|
| 1 | 9-36V (red) | External power positive |
| 2 | GND (black) | GND |
| 3 | GND (yellow) | GND |
| 4 | TX (green) | Host RX |
| 5 | RX (blue) | Host TX |
Mechanical Dimension Drawing and Electrical Interface Diagram
These figures are extracted from the named model source without generative modification.
Direct Time-of-Flight Ranging
The LRF50H model document identifies the product as direct time of flight (DToF). It determines distance from the delay between an emitted optical pulse and the accepted return.
R = c × Δt / 2R: one-way distance · c: propagation speed · Δt: measured round-trip delay
Real performance also depends on target reflectivity and area, incidence angle, atmospheric attenuation, receiver aperture, background light, detector response, timing thresholds and contamination of the optical path.
What the verified data supports
These are traceable design inputs, not unsupported superlatives or guaranteed field outcomes.
Timing and output
Measurement frequency: 20 Hz-10 kHz (default: 1 kHz) · Reported resolution: 1 cm · Repeatability: ±5 cm
Electrical integration
Supply voltage: 9-36 V DC · Communication interface: UART · Average power consumption: 0.8 W
Mechanical integration
Dimensions: 38 × 20 × 30 mm · Weight: 15 ± 2 g · Operating temperature: -20°C to +60°C (no condensation; indication red light automatically turns off below -20°C)
Source-stated application context
Application labels indicate where the source proposes evaluation; they do not prove fitness without system testing.
- Overhead-crane positioning
- Distance control for carriage connection
- Security and protection
- Inspection robots
Confirm before selection
- Define target size, reflectivity, incidence angle and required detection probability.
- Reproduce sunlight, visibility, weather and optical-window conditions in acceptance testing.
- Verify voltage tolerance, peak current, grounding, interface levels, baud rate and connector revision.
- Separate accuracy, repeatability and displayed resolution in host requirements.
- Confirm mounting datum, boresight, field of view, enclosure sealing and thermal path.
- Assess accessible emission and labeling again after integration into the finished equipment.
Questions to resolve before design release
Does the maximum stated range apply to every target?
No. Use the reflectivity and environmental conditions shown beside the range row. Smaller, darker, oblique or partially obscured targets and degraded visibility can reduce received signal.
Are resolution, repeatability and accuracy interchangeable?
No. Resolution is the reporting increment, repeatability describes variation under repeated conditions, and accuracy describes closeness to the reference distance under the stated test method.
Is the finished product automatically Class 1?
No. A module-level source statement does not replace the accessible-emission and failure-condition assessment of the finished equipment, its window, controls, service access and labeling.
Which documents control wiring and interface release?
The ordered connector drawing, pin definition and approved interface document control the design.
Product evidence and general technical context
The model PDF controls product claims. Public references support only the general engineering explanations and must not be used to infer a missing model value.
- LRF50H Specification V3.0Model-specific product evidence; SHA-256 is shown above.
- System Design of a Pulsed Laser RangefinderOptical Engineering 30(3), 1991 - link budget, background, noise, detection and range error.
- The Short-Range, High-Accuracy Compact Pulsed Laser Ranging SystemSensors 22(6), 2146, 2022 - pulsed-ToF equation, timing error, reflectivity and temperature effects.
- Laser system range calculations and the Lambert W functionApplied Optics 48(4), B1-B7, 2009 - range performance versus atmospheric transmission, target and system parameters, and threshold SNR; its 1.06 µm example is general context, not ERDI model data.
- Monostatic all-fiber rangefinder systemApplied Optics 54(25), 7687-7694, 2015 - a measured case study of shared-aperture geometry and receiver-recovery loss; it does not establish an ERDI model limit.
- Light Transmission in Fog: The Influence of Wavelength on the Extinction CoefficientApplied Sciences 9(14), 2843, 2019 - measured and modeled wavelength-dependent fog attenuation.
- IEC 60825-1:2014Laser-product classification and accessible-emission requirements; final equipment requires system-level assessment.
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