EKM-010 technical description smart lock 1


Mobile Easykey smart lock replaces every mechanical switch lock on drawbar- and small electrical appliances.

The simple installation, without drilling, etc., allows quick and easy installation.

The system can be installed or retrofitted to all common devices - regardless of the manufacturer.

smart lock is a simple and cost effective access control.

The device is released via transponder. Unauthorized use is thus ruled out.

smart lock can be used as a standalone solution or integrated into a Mobile Easykey infrastructure.

The programming takes place via an infrared interface.

Manufacturer approval

Mobile Easykey smart lock is approved exclusively for use in drawbar and small electrical appliances.

No approval exist for:

- Industrial trucks with internal combustion engine drive

- Vehicles on public roads

- EX protection areas

- Aviation sector

In addition, the known conditions of Domnick+Müller GmbH + Co. KG, Friedrichsdorf apply.

Circuit diagram smart lock

Installation instruction

Mechanical and electrical installation:

1. Remove the mechanical switch lock and install the smart lock in the existing opening.

2. Fix the retaining nut with 2Nm.

3. Establish power supply:

Pin 1 Cable colour black = 12V to 24 Volt DC

Pin 2 Cable colour brown = GND, Minus, 0 Volt

Pin 4 Cable colour orange = MOSFET-Relay
Connection (max. 200 mA / 24 V, Polarity + or –,
potential separated from the rest of the circuit.

Pin 5 Cable colour yellow =
MOSFET-Relay connection 2 (see Pin 4)

4. Before the electrical connection, the current to be
switched must be measured. Attention: Larger, even
short-term currents can destroy the smart lock.
(See also Chapter 2 „Manufacturer‘s approval“)

5. If the current is greater than 200mA, an additional
power relay must be used.

6. When supplying power to the module, make sure
that a 1 A fuse idle is installed to the positive
connection cable.

7. Module programming and commissioning.


The antenna captures the transponder data in the reading range up to approx.

20 mm and forwards it to the evaluation electronics.

Only when the authorisation has been recognized, the release switch then switches the connected load.

Technical Data

Dimensions without connection cableDiameter x Lenght: Ø 27 x 56 mm
Drilling diameter: Ø 22,5 mm
Thread: Ø 22 mm x 49,5 mm
Weight without connection cable25 g
CasingTransparent, protection IP 54
AttachmentScrew connection with nut Ø 22 mm
Temperature range-10 up to +65 °C
Working relaypotential-free electronic switch max. Operating current:
200 mA
max. Nominal battery voltage: 24 V DC
Length of connection cable25 cm
Switch on -and offVia user transponder, display with LEDs
Power supplyNominal battery voltage: 12 - 24 V DC
Power consumption / performance< 100 mA
< 2 W
Programming of user datavia serial infrared(IR)-interface
Programming cableLength approx. 1,5m
Type: Mobile Easykey
Type: Mobile EasykeyLength approx. 1,5m
Response range of the transponderUp to ca. 20 mm
Data receiptBattery-backed (5 years battery life)


Mobile Easykey Support: khd@mobileeasykey.de

Measure the voltage supply
At the brown plug of the smart lock measure with thin measuring tips between the black and brown cable. There
must be at least 12 V DC.
Check relay contact
At the brown plug of the smart lock measure with thin measuring tips between the orange and yellow cable. After
switching on via the transponder, the potential must be switched over.

Domnick+Müller GmbH+Co. KG

Max-Planck-Straße 11

D-61381 Friedrichsdorf 







Domnick+Müller GmbH + Co. KG
Max-Planck-Straße 11
D-61381 Friedrichsdorf