Radio Transmitters for retrieval unit

EH 22810.

For cable-free transfer of the retrieval signal.

The radio transmitter is installed close to the retrieval unit, and connected to the bushing of the silicone cable. The transmitter makes the polled signal available by radio, and does not require additional cable connection. Power is supplied by a battery.

The radio transmitter meets the requirements of protection class IP 67 (robust material) and is therefore suitable for use with cooling lubricants.

Frequency: 868.3 MHz (EU, Switzerland)

Other frequencies available on request.

Your selection resulted in 1 hits

l2 [mm]
b2 [mm]
h2 [mm]
For art. no.
CAD / Documents
Universal radio transmitter with protective caps
l2 [mm]:
98 mm
b2 [mm]:
64 mm
h2 [mm]:
52.5 mm
For art. no.:
22810.0008 / .0012
Radio Transmitters
  • Universal radio transmitter with protective caps
  • l2: 98 mm
  • b2: 64 mm
  • h2: 52.5 mm
  • b1: 36 mm
  • d1: M12 x 1 mm
  • d2: 4.5 mm
  • h1: 37 mm
  • l1: 86 mm
  • Weight: 288 g
More details
Radio Transmitters


An AA battery (3.6 V) is included in the scope of delivery.

Further information on request.

protection cap
for retrieval unit
protection cap
  • protection cap
  • Weight: 4.9 g
Direct download
Download basket
FAQ - Radio Transmitters
Direct download:
Download basket:
Download basket
Datasheet EH 22810. Radio Transmitters – for retrieval unit
Direct download:
Download basket:
Download basket

RoHS compliant

Compliant according to Directive 2011/65/EU and Directive 2015/863


Does not contain SVHC substances

No SVHC substances with more than 0.1% w/w contained - SVHC list [REACH] as of 10.06.2022


Does not contain Proposition 65 substances

No Proposition 65 substances included


Free from Conflict Minerals

This product does not contain any substances designated as "conflict minerals" such as tantalum, tin, gold or tungsten from the Democratic Republic of Congo or adjacent countries.


How is the position of a component monitored by the retrieval unit?

The retrieval sensor contains a button that is operated by an overlying component.

Where is the retrieval sensor located?

The retrieval sensor is positioned on the outside of the body The adjustable body allows the height to be set.

Which temperature ranges are allowed?

The sensor cable is designed to withstand temperatures of up to 180°C for short periods and is thus protected against chips, for example. The button can withstand temperatures of up to 120°C and is additionally protected against chips by the support of the workpiece.

How is the retrieval unit protected against dust and dirt?

Sensor (button): IP67, radio transmitter: IP67, radio receiver: IP20

Which seating elements can be used with the retrieval unit?

Seating elements with the following EH article number can be used: Size M8: 22690.0021 / .0121 / .0221 / .0321 / .0421 and 22691.0122 / .0021 / .0222. Size M12: 22690.0001 / .0002 / .0101 / .0102 / .0201 / .0202 / .0301 / 0302 / .0401 / .0402 and 22691.0143 / .0041 / .0042 / .0243

How to position the retrieval unit in the machine room?

The retrieval unit can be screwed into an M8 or M12 thread. The Halder base plate with slot tenons of the V40 or V70 system is suitable for this purpose.

How is the electrical power supply provided?

An AA battery (3.6V) is integrated in the radio transmitter. Depending on use, this battery lasts between 300 - 1400 days. The radio receiver has a supply interface: rated operating current/voltage Ie / Ue max. 0.1A / 24VDC -15%...+10%.

How is the retrieval signal transmitted wirelessly?

The electrical signal is converted into a radio signal by means of a radio transmitter and again into an electrical signal by the antenna of the radio receiver. Thus, the signal can be transmitted without having to lead a cable out of the engine room.

What kind of signals are transferred at the radio receiver?

Input: radio signal via antenna (frequency 868.3MHz). Output: electrical signal: 3A / 250VAC; 3A / 24VDC

What is the range of the radio signal?

The signal has a range of approx. 40m in closed rooms. In engine rooms, the range also depends on the type of cladding.