EMS2 Desk


ELSYS desk occupancy, temperature, and humidity sensor.

Batteries are not included. This product requires 1 x AA 3.6V Lithium Batteries (ER14505).

In stock (can be backordered)

Quantity Price
1+ 78 EUR
SKU: EMS2DESK Categories: , ,


EMS2 Desk is a wireless LoRaWAN® sensor for indoor environments that measures desk occupancy, temperature, and humidity. Its small size is ideal for mounting under desks, and its Scandinavian design makes it discrete in business, public, and home environments. EMS Desk requires low maintenance with its long battery life (up to 5 years), and the batteries can easily be changed when needed. Configurations of the sensor, such as sample rate, data rate, encryption keys, triggers, activation, and more, can easily be done via NFC with a smartphone or via downlink.

Batteries are not included. This product requires 1 x AA 3.6V Lithium Batteries (ER14505). 

Visit our Documents & Firmware page to download the operating manual.

The device should be mounted underneath the desk, 10-20 centimeters from the front edge of the desk. Ensure the hole points towards the person sitting or standing by the desk. The sensor can detect occupancy up to 50 centimeters with a field of view of 60 degrees both in the horizontal and vertical direction. After mounting the sensor at its intended location, it will need time to calibrate to the new environment (to set the correct baseline for occupancy detection). Leave the sensor to calibrate over the night and ensure that it is not close to or looking at a hot object (like a radiator) or placed near air vents, as it may disturb the occupancy detection.

Additional information


Plastic, PC / ABS

IP rating



Adhesive tape

Operating temperature

0 to 50 °C

Operating humidity

0 to 85 % RH (non-condensing)

Usage environment


Operating voltage

3.6V DC

Battery type

AA 14505 (Li-SOCI2)

Expected battery life

Up to 10 years (Depending on settings and environmental factors)

Sampling interval

Default 10 min. Configurable via NFC and downlink.

Data upload interval

Default 10 min. Configurable via NFC and downlink

Wireless technology

LoRaWAN® 1.0.4, Regional Parameters RP2 – 1.0.3

Wireless security

LoRaWAN® End-to-End encryption (AESCTR), Data Integrity Protection (AESCMAC)

LoRaWAN device type

Class A End-device

Supported LoRaWAN® features

OTAA, ABP, ADR, Adaptive Channel Setup

Supported LoRaWAN® regions

EU868, IN865, US915, AU915, AS923, KR923, HK923

RF transmit power

Max 14 dBm EIRP

EU directives compliance

RED 2014/53/EU, RoHS 2011/65/EU, WEEE 2012/19/EU

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