Emlid Reach M+



For precise UAV mapping with less GCPs.


BeiDou B1
Galileo E1

Positioning Accuracy

Static horizontal 5mm + 1 ppm
Static vertical 10mm + 2 ppm

Kinematic horizontal 7mm + 1 ppm
Kinematic vertical 14mm + 2 ppm


LoRa radio (sold separately) 868/915MHz (up to 8km)
Wi-Fi 802.11b/g/n
Bluetooth 4.0/2.1 EDR
Ports: USB, UART, Event


NTRIP and RTCM3 corrections
NMEA and LLH/XYZ position output
RINEX logs with update rate up to 14Hz
8GB internal storage

Package Contents

– Emlid Reach M+
– USB cable
– USB-OTG cable
– JST-GH 6-pin to jumper pin cable
– JST-GH 5-pin to jumper pin cable
– Emlid Flow app (free download)

In stock


Emlid Flow 1-Year Survey Plan Subscription

The Emlid Flow Survey Plan Subscription unlocks advanced survey functions on both the Emlid Flow app and the Emlid Flow 360 cloud-based interface.

See added benefits below:

Emlid Flow

- Collect and stakeout lines
- Add survey codes on the go
- Use WMS/WMTS layers
- Satellite map
- Localization

Emlid Flow 360

- Upload code libraries
- Satellite map
- Use WMS/WMTS layers

Up to three Emlid Flow 1-Year Survey Plan Subscription licenses can be active simultaneously on your Emlid Flow account, ensuring you have long term access to the benefits of the Survey Plan.

Tallysman TW4721 GNSS Antenna

Tallysman TW4721 is a compact, wideband Accutenna™ technology GNSS antenna that provides accurate reception for all upper L- band GPS, GLONASS, Beidou, and Galileo signals (L1, G1, B1, B1 BOC, B12, E1) and associated augmentation signals (WAAS, EGNOS and MSAS SBAS).


Architecture: dual, quadrature feeds
Size: 38 x 38 x 14mm
Weight: 50g
Attachment Method: adhesive


LNA Gain: 26dB min
Supply Current: 10mA typ. 15mA max.
Supply Voltage: 1.8V to 16V DC nominal
Noise: 1dB typ.

Compatible with the Emlid Reach M+.

Emlid Reach M2/M+ Camera Hot Shoe Adapter

Hot shoe adapter for the Emlid Reach M2/M+ modules. Wires the flash sync pulse from camera to the Reach M2/M+ modules, for precise time stamping of each picture. Necessary for the PPK workflow.

Designed to work with any camera with hot shoe connector. Tested with Sony, Canon and Nikon.

Not compatible with the original, Edison-based, Reach module.

Emlid Reach M2/M+ LoRa Radio

The Emlid LoRa Radio allows the Emlid Reach M2/M+ modules to receive corrections from a local RTK base station.


Antenna connector: RP-SMA
Weight: 17g, 32g with the antenna
Size: 50 x 29 x 19.6mm


Frequency: 862-1020MHz
Output power: 100mW
Transmission range: up to 8km

Package Contents

– Emlid LoRa Radio module
– Emlid LoRa antenna
– Cable for connection to the Emlid Reach M2/M+

Сompatible with Emlid Flow app.

Not compatible with the original, Edison-based, Reach. Emlid Reach M2/M+ modules are not included.

Emlid Reach M2/M+ JST-GH 6p-6p Cable for Pixhawk 2

Not compatible with the original, Edison-based, Reach module.

Emlid Reach M2/M+ JST-GH to DF13 6p-6p Cable for Pixhawk 1

Not compatible with the original, Edison-based, Reach module.


Why camera synchronization is so important

Usually autopilot triggers the camera and records the coordinate it has at that moment. When the drone is flying at 20m/s and GPS works at 5Hz, that means your autopilot will have position readings only each 4m, which is not suitable for precise georeferencing. In addition, there is always a delay between the trigger and the actual moment the photo is taken.

Reach eliminates the delay

Reach solves the problem of positioning by connecting directly to the camera hot shoe port, which is synced with the shutter. The time and coordinates of each photo are logged with a resolution of less than a microsecond. This method allows GCPs to be used only to check your accuracy.

PPK workflow

1. Connect Reach to a hot shoe port on a camera

Every time a photo is taken camera produces a pulse on a flash hot-shoe connector which is synced to a shutter opening.

2. Fly a drone, Reach will record photo events

Reach captures flash sync pulses with sub-microsecond resolution and stores them in a raw data RINEX log in the internal memory.

3. Download logs from Reach and base station

After the flight, get the RINEX logs from your airborne Reach module and a base station (Reach RS, CORS or another receiver).

4. Process logs and get a file with geotags of photos

Process RINEX files using free Emlid Studio software. The produced file with precise coordinates of the photos can be used for georeferencing.

NTRIP or another Reach as a base station

To calculate centimetre-precise coordinates in PPK and RTK, Reach needs corrections from a base station. It could be either another Reach receiver or an NTRIP service. VRS is also supported.


Up to 10km


Up to 20km

Time to fix

1-2 minutes

RINEX logging update rate

Up to 14Hz

Comes with the Emlid Flow app

The most user-friendly software for data collection that is available both for Android and iOS. Supports thousands of coordinate systems and is translated into multiple languages. With Emlid Flow, you can control all the features of Reach receivers, such as setting up a base station, logging RINEX data, and configuring NMEA output.

Camera control

The Emlid Reach M+ can trigger cameras as well as register events. The event mark feature is a must for aerial mapping as it allows the precise time when the shutter was activated to be registered.

Simple log management

Logs are automatically recorded directly to RINEX in the internal memory. View a list of the logs and download them using the Emlid Flow app.

Monitoring data

Emlid Flow shows current satellite levels, your location on a map, and much more.


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