ERDI LDR25K1 1064nm Laser Target Designator with 25mJ Output for Precision Target Marking
ERDI LDR25K1 1064nm Laser Target Designator with 25mJ Output for Precision Target Marking
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The LDR25K1 is a compact 1064 nm solid-state laser rangefinder and target designator with 25 mJ pulse energy, configurable beam divergence and frequency-coded illumination. It delivers precise ranging beyond 5 km with ±2 m accuracy and ≥ 98% hit rate, plus ≥ 2 km designation range at 20 Hz coding frequency. With RS-422 digital control, a sub-400 g mechanical envelope, 20–28 V supply and full MIL-style environmental hardening, it is ideal for UAV gimbals, vehicle turrets, airborne pods and other high-end electro-optical systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Wavelength | 1.064 ± 0.003 μm |
| Pulse Energy | ≥ 25 mJ |
| Measurement Range (Ranging) | 120 m to ≥ 5,200 m (Vehicle-sized target) |
| Measurement Range (Designation) | ≥ 2 km |
| Ranging Accuracy | ±2 m |
| Ranging Frequency | 1 Hz / 5 Hz / Single-shot |
| Designation Frequency | 20 Hz (Coded) |
| Beam Divergence | ≤ 0.6 mrad |
| Hit Rate | ≥ 98% |
| Communication Interface | RS-422 / TTL |
| Supply Voltage | 20–28 V |
| Power Consumption | ≤ 50 W (Avg) |
| Operating Temperature | -40°C to +60°C |
| Dimensions | 68 mm × 52 mm × 90 mm |
| Weight | ≤ 380 g |
Control Functions
- Respond to ranging commands; stop upon stop command;
- Output one set of range data and status per pulse during ranging;
- Range gate function for ranging;
- Auto‑stop continuous ranging after 5 min (1 Hz) or 1 min (5 Hz) if no stop command is received;
- Configure designation mode and code;
- Respond to designation command per configured mode/code; stop upon stop command;
- Auto‑stop after one designation cycle if no stop command is received;
- Output distance and status per pulse during designation;
- Power‑on and periodic self‑test with status output;
- Respond to self‑test command with status output;
- Report cumulative number of emitted laser pulses.
- OUTLINE DIMENSION
- ≤ 68 mm × 52 mm × 90 mm
- PIN INTERFACE
-
Communication interface: one TTL-level serial port.
Connector model and interface definition: see Table 1.Socket: MOLEX 53048-0810
Mating Plug: MOLEX 51021-0800Table 1 — Electrical Interface Definition (TTL)
Pin No.
Signal Name
Description
1
24V
Power supply +
2
24V
Power supply +
3
24V GND
Power return (–)
4
24V GND
Power return (–)
5
—
—
6
TTL_RX
Host → laser rangefinder/designator module
7
TTL_TX
Laser rangefinder/designator module → host
8
TTL_GND
Serial port ground
