3M™ Dynatel™ Marker Locator 1420-ID

High-performance EMS marker locator with iD read/write, up to 8 ft depth.

The 3M Dynatel Marker Locator 1420-ID is a high-performance locator that quickly and efficiently estimates the exact location of all underground markers. This locator can simultaneously locate two marker frequencies, making it a highly capable and efficient tool for field teams working across mixed-utility environments. Lightweight, GPS-enabled, and built with a large backlit display, the 1420-ID is designed for operators who need a dedicated marker locator — one that focuses on fast, precise EMS marker detection without the complexity of cable or pipe tracing functions.

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Key Features

Detects industry-standard electronic marker frequencies — compatible with the full 3M EMS marker range
3M iD Marker read/write capability and depth estimation — read stored asset data, write new information, and get push-button depth estimation for buried iD markers
Marker maximum read range up to 8 ft (2.4 m) depth
Simultaneously locates two marker frequencies — improved efficiency when working in areas with multiple utility types
GPS communication capability for GIS mapping of pipe/cable path and electronic markers
Light weight with excellent balance and ergonomics — designed for comfortable extended field use
Large, backlit high-resolution graphic display — clear and readable in all lighting conditions

Use Cases

Applications & Deployments

Locating buried EMS markers across all utility types — telecom, power, gas, water, wastewater, and general purpose

Utility asset mapping and GIS data capture in the field

Verification of marker placement after installation

Pre-excavation utility identification for safe digging compliance

Maintenance inspection of buried infrastructure networks

Field access to iD marker data — facility records, material type, installation date