Detailed LRF1200A1 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.
Optical parameters
| Parameter | Value | Source condition |
|---|---|---|
| Laser wavelength | 905 nm | LRF1200A1 controlled source technical table |
| Eye safety | Class 1 | Source-stated classification or rating; not independently certified by this page |
Mechanical and environmental
| Parameter | Value | Source condition |
|---|---|---|
| Launch lens diameter | Diameter 6.6 mm | LRF1200A1 controlled source technical table |
| Receiver lens diameter | Diameter 18 mm | LRF1200A1 controlled source technical table |
| Valid measurement rate | ≥98% | LRF1200A1 controlled source technical table |
| False alarm rate | ≤1% | LRF1200A1 controlled source technical table |
| Weight | 18 g | LRF1200A1 controlled source technical table |
| Dimensions | Diameter 23 × 40 mm | Source product description; formal table text omits the multiplication sign |
| Operating temperature | -20°C to +60°C | LRF1200A1 controlled source technical table |
| Storage temperature | -55°C to +65°C | LRF1200A1 controlled source technical table |
| Impact resistance | 1200 g, 1 ms | LRF1200A1 controlled source technical table; source test wording retained |
| Vibration resistance | 5–50–5 Hz, 1 octave/min, 2.5 g | LRF1200A1 controlled source technical table |
| Reliability | MTBF ≥1500 h | LRF1200A1 controlled source technical table |
| Activation time | ≤500 ms | LRF1200A1 controlled source technical table |
| Waterproof rating | Lens IP67 | Source-stated classification or rating; not independently certified by this page |
| ESD class | Contact discharge 6 kV; air discharge 8 kV | Source-stated test entry; not independently verified by this page |
| Electromagnetic compatibility | CE/FCC certification | Source-stated classification or rating; not independently certified by this page |
| Environmental compliance | RoHS 2.0 | Source-stated classification or rating; not independently certified by this page |
Basic ranging performance
| Parameter | Value | Source condition |
|---|---|---|
| Measuring range | 5–1200 m | Building target; controlled source table |
| Ranging accuracy | ±1 m (5–100 m); ±(1 + L × 0.4%) m (>100 m) | LRF1200A1 controlled source technical table |
| Display resolution | 0.1 m | LRF1200A1 controlled source technical table |
| Ranging frequency | 1–3 Hz | LRF1200A1 controlled source technical table |
Electrical and communication interface
| Parameter | Value | Source condition |
|---|---|---|
| Data interface | UART, TTL 3.3 V | LRF1200A1 controlled source technical table |
| Supply voltage | 3.3 V ±0.1 V | LRF1200A1 controlled source technical table |
| Standby power consumption | ≤400 mW | LRF1200A1 controlled source technical table |
| Operating power consumption | ≤1.5 W | LRF1200A1 controlled source technical table |
Functional Description
In the source low-power mode the MCU is off and does not respond to commands. Pull Enable LOW for normal operation and measurement, then HIGH after measurement to return to low power.
The source separately describes a secondary low-power mode that can respond to commands and return to normal operation for a measurement.
The controlled source lists single and continuous ranging as supported operating functions.
Electrical Interface Definition
Signal names and directions are transcribed from the model source.
| Pin | Signal | Source-stated function |
|---|---|---|
| 1 | GND | Ground |
| 2 | Power supply | 3.3 V DC supply |
| 3 | NC | Reserved / no connection |
| 4 | TTL_TXD | Serial transmitter, TTL 3.3 V level |
| 5 | TTL_RXD | Serial receiver, TTL 3.3 V level |
| 6 | Enable | LOW level power-on control; source connector reference FWF08002-S06B13W5M |
Mechanical Dimension Drawing and Electrical Interface Diagram
These figures are extracted from the named model source without generative modification.
Pulsed Time-of-Flight Engineering Context
The public LRF1200A1 source used here does not state the internal timing architecture. The equation below describes pulsed time-of-flight ranging generally and is not presented as an additional LRF1200A1 specification.
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.
Performance envelope
Measuring range: 5–1200 m · Ranging accuracy: ±1 m (5–100 m); ±(1 + L × 0.4%) m (>100 m)
Timing and output
Ranging frequency: 1–3 Hz · Display resolution: 0.1 m
Electrical integration
Supply voltage: 3.3 V ±0.1 V · Standby power consumption: ≤400 mW
Mechanical integration
Dimensions: Diameter 23 × 40 mm · Weight: 18 g · Operating temperature: -20°C to +60°C
Source-stated application context
Application labels indicate where the source proposes evaluation; they do not prove fitness without system testing.
- Handheld rangefinders and sport optics
- Mobile devices and compact industrial instruments
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.
- LRF1200A1 verified product specificationModel-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.