LRF0305C · 1535 nm Laser Rangefinder Module
LRF0305C datasheet: specifications, range conditions, interface
Every value below is copied from the published LRF0305C specification table with its test condition, so you can compare it with other modules on equal terms.
LRF0305C key specifications
| Item | Published value |
|---|---|
| Model | LRF0305C |
| Published range | ≥ 4,000m @60% Reflectivity, Building Target ≥3,000m @30% Reflectivity, 2.3 × 2.3m Target ≥1,500m @30% Reflectivity, 0.5 × 1.7m Target ≥800m @30% Reflectivity, 0.2 × 0.3m Target |
| Wavelength | 1535±5nm |
| Interface | UART(TTL 3.3V) |
| Accuracy | ±1 m |
| Update rate | 1Hz ~10Hz |
| Supply | DC 3~5V |
| Weight | ≤14 ±1 g (notation as printed in the module document) |
| Dimensions | ≤ 27 × 25 × 15.5mm(L×W×H) |
| Laser safety | Class I stated in the module document. Final accessible-emission classification applies to the complete configuration. |
| Price | From $300 per unit |
Full specification table
ERDI published product specifications, captured 2026-10-08.
| Parameter | Published value | Condition / note |
|---|---|---|
| Laser wavelength | 1535±5nm | |
| Module laser-safety statement | Class I stated in the module document. Final accessible-emission classification applies to the complete configuration. | |
| Divergence Angle | ≤0.6 mrad | |
| Laser Energy | ≥100 μJ | |
| Field of view (FOV) | Approximately 7.4 mrad | |
| Maximum Measuring Range (Visibility > 8km) | ≥ 4,000m @60% Reflectivity, Building Target ≥3,000m @30% Reflectivity, 2.3 × 2.3m Target ≥1,500m @30% Reflectivity, 0.5 × 1.7m Target ≥800m @30% Reflectivity, 0.2 × 0.3m Target | |
| Minimum range | ≤10 m | |
| Measurement frequency | 1Hz ~10Hz | |
| Multi-Target Detection | Up to 3 targets | |
| Ranging accuracy | ±1 m | |
| Valid measurement rate | ≥98% | |
| False alarm rate | ≤1% | |
| Interface Type | UART(TTL 3.3V) | |
| Power Supply Voltage | DC 3~5V | |
| Standby Power Consumption (Full Temperature Range) | ≤10mW (Power on pulled low) | |
| Operating power consumption — full temperature range | 5 V: ≤0.9 W at 1 Hz; <1.5 W at 10 Hz | |
| Peak Power Consumption | <3W@5V | |
| Start-up Time | ≤350ms (After startup, response time <20 ms) | |
| Weight | ≤14 ±1 g (notation as printed in the module document) | |
| Dimensions | ≤ 27 × 25 × 15.5mm(L×W×H) | |
| Shock | 1200g, 1ms | |
| Vibration | 5~50~5 Hz, 1 octave/min, 2.5g | |
| Operating temperature | −40 °C to+70 °C | |
| Storage temperature | −45 °C to+70 °C | |
| Reliability | MTBF>1500h |
Connector pinout
| Pin | Signal | Note |
|---|---|---|
| 1 | POWER_ON | Module Power Switch, TTL 3.3V Level; Module On (>2.7V), Module Off (<0.3V) |
| 2 | UART_RX | Serial Port Receiver, TTL 3.3V Level |
| 3 | UART_TX | Serial Port Transmitter, TTL 3.3V Level |
| 4 | NC | |
| 5 | Power Positive | Power Supply, 3~5V |
| 6 | GND | Serial Port Ground |
Ordering the LRF0305C
The published single-unit price of the LRF0305C is $500, falling to $300 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com. Technical questions and quantity quotes: tommy@erdimail.com. Full specification table, downloads and ordering: LRF0305C model page.
FAQ
What is the maximum range of the LRF0305C?
The published range is ≥ 4,000m @60% Reflectivity, Building Target ≥3,000m @30% Reflectivity, 2.3 × 2.3m Target ≥1,500m @30% Reflectivity, 0.5 × 1.7m Target ≥800m @30% Reflectivity, 0.2 × 0.3m Target. A range figure is only comparable together with the target and conditions it was measured on, so the condition is listed next to the value.
Which interface does the LRF0305C use?
The published communication interface is UART(TTL 3.3V).
What laser wavelength does the LRF0305C use?
The published wavelength is 1535±5nm; laser safety entry: Class I stated in the module document. Final accessible-emission classification applies to the complete configuration..
How much does the LRF0305C cost?
The published single-unit price of the LRF0305C is $500, falling to $300 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
Model records
Open the model page for the full specification table, downloads, published price and ordering.
- LRF0305C — LRF0305C 1535 nm Laser Rangefinder Module