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Discovery Optics D4000 delivers accurate distance measurements across 5–4000 m with ±1 m accuracy, supports angle compensation, an up to 8-second continuous scan mode, automatic power-off after 20 seconds of inactivity and features multi-coated optics with an eye-safe 905 nm IR laser. The compact body supports tripod mounting, making the device suitable for demanding field applications.
👥 Veteran-led team
We field-test the Discovery Optics D4000 for long-range accuracy, consistency under temperature shifts, display readability in bright light, scan-mode responsiveness with multiple targets, and ergonomic comfort during extended single-hand operation.
⚙️ Technical specifications
| Parameter | Value |
|---|---|
| Measurement range | 5–4000 m |
| Accuracy | ±1 m |
| Angle compensation | supported |
| Scan mode | continuous, up to 8 s |
| Laser type | 905 nm IR, eye-safe |
| Optics | Multi-Coated |
| Auto power-off | 20 s |
| Interface | intuitive quick-access menu |
| Tripod mount | yes |
| Build | compact and lightweight |
| Use case | long-range field measurement |
💬 Comments
Discovery Optics D4000 is designed for users who require dependable long-range distance measurement without sacrificing speed or portability. The extended range makes it suitable for open terrain, mountainous areas and range-based tasks, while scan mode improves efficiency when tracking distant or moving objects.
🎯 Recommended for
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hunting and shooting activities
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field and professional applications
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surveying and engineering tasks
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mountain and expedition travel
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users who need very long-range measurement capability