This guide will guide you in just a few steps to the right handheld transmitter or radio receiver for your garage door opener or industrial control system. We've deliberately kept it simple – with short paragraphs, clear tables, and practical examples.

Quick check: How to find the right handheld transmitter

1) Read the frequency on the old handheld transmitter or receiver (usually 433 MHz or 868 MHz).

2) Detect the protocol: BiSecur, SOMloq2, Rolling Code, Multi-Bit, etc. – often indicated on the transmitter/receiver or in the manual.

3) Note the brand/series (e.g. Hörmann BiSecur, Marantec Multi‑Bit, Sommer SOMloq2).

4) Select the appropriate handheld transmitter for the series – or switch to an external universal receiver for mixed operation.

5) When teaching in: Note memory locations, key sequences and safety functions (see below).

• To all handheld transmitters
• To all radio receivers
• make contact

Basics: Frequencies & Radio Protocols

Most gate systems operate on 433 MHz or 868 MHz. In addition, there's the radio protocol, the "language" of the system. The handheld transmitter only works if the frequency and protocol match.

Expression	Briefly explained	Example
frequency	Carrier frequency of the radio signal (e.g. 433 MHz, 868 MHz).	Common: 868 MHz for Hörmann BiSecur, 433 MHz for LiftMaster.
Rolling Code	Changing code with each activation, increases security.	Many 433/868 systems.
BiSecur	Encrypted Hörmann protocol (868 MHz).	HSE2/HS4/HS5 868‑BS.
Multi-bit	Marantec protocol (868 MHz).	Digital 382/384.
bi-linked	Newer Marantec series (868 MHz) with return channel function.	Digital 663.
SOMloq2	Summer protocol (868 MHz, encrypted).	pearl, pearl vibe, SOMcom2/4.

Brands & Systems – Identification features and compatibility

Hörmann: Identification features

Typical protocols: BiSecur 868 MHz, 868 MHz Rolling Code (old), 433 MHz (old systems).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Hörmann: Which handheld transmitter fits?

Handheld transmitter/series	Shop category	Directly fitting	alternative
HSE2 868-BS (2-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
HS4 868-BS (4-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
HS5 868-BS (with status query)	see product finder	yes – if frequency & protocol match	external receiver may be required
Compatible handheld transmitter 868 MHz (rolling code)	see product finder	yes – if frequency & protocol match	external receiver may be required

Hörmann: Matching radio receivers

Recipient	Connection	Notice	Installation tip
External radio receiver 868 MHz BiSecur	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
Universal receiver 433/868 MHz (when converted)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Hörmann: Important information

• BiSecur (868 MHz) is not compatible with 433 MHz.
• Older 868 MHz rolling code handheld transmitters do not work with BiSecur receivers without conversion.
• In mixed operation, an additional external receiver is often the pragmatic solution.

Marantec: Identification features

Typical protocols: 868 MHz multi-bit, 868 MHz bi-linked (newer series).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Marantec: Which remote control is suitable?

Handheld transmitter/series	Shop category	Directly fitting	alternative
Digital 382 (2-channel, multi-bit)	see product finder	yes – if frequency & protocol match	external receiver may be required
Digital 384 (4-channel, multi-bit)	see product finder	yes – if frequency & protocol match	external receiver may be required
Digital 663 (bi linked, status query)	see product finder	yes – if frequency & protocol match	external receiver may be required
Compatible handheld transmitter 868 MHz (rolling code)	see product finder	yes – if frequency & protocol match	external receiver may be required

Marantec: Matching radio receivers

Recipient	Connection	Notice	Installation tip
External receiver 868 MHz Multi-Bit	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
External receiver 868 MHz bi-linked	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Marantec: Important information

• Multi-bit and bi-linked are different protocols.
• For old/new systems in mixed operation, a second receiver is recommended.

Summer: Identifying features

Typical protocols: SOMloq2 868 MHz (encrypted), SOMloq 868 MHz (older systems).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Summer: Which remote control fits?

Handheld transmitter/series	Shop category	Directly fitting	alternative
pearl (4-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
pearl Vibe (4-channel, vibration feedback)	see product finder	yes – if frequency & protocol match	external receiver may be required
pearl twin (2-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
Slider+ (4-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required

Summer: Matching radio receivers

Recipient	Connection	Notice	Installation tip
SOMcom2 (2-channel receiver, SOMloq2)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
SOMcom4 (4-channel receiver, SOMloq2)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
SOMup4 (4-channel plug-in receiver)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Summer: Important information

• Pay attention to SOMloq vs. SOMloq2 – different protocols.
• For older systems, an external receiver may be useful.

Novoferm: Identifying features

Typical protocols: 433 MHz rolling code (Novotron series).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Novoferm: Which remote control is suitable?

Handheld transmitter/series	Shop category	Directly fitting	alternative
Novotron 512 (2-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
Novotron 522 (2-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required
Novotron 524 (4-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required

Novoferm: Matching radio receivers

Recipient	Connection	Notice	Installation tip
External 433 MHz rolling code receiver	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Novoferm: Important information

• For very old Novoferm systems, check the frequency (rarely different).

LiftMaster/Chamberlain: Identifying features

Typical protocols: 433 MHz Rolling Code, MyQ (gateway/network, if relevant).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

LiftMaster/Chamberlain: Which remote control is suitable?

Handheld transmitter/series	Shop category	Directly fitting	alternative
TX4EV (4-channel)	see product finder	yes – if frequency & protocol match	external receiver may be required

LiftMaster/Chamberlain: Matching radio receivers

Recipient	Connection	Notice	Installation tip
433 MHz rolling code receiver	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
Universal plug-in receiver (433/868 MHz depending on model)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

LiftMaster/Chamberlain: Important information

• MyQ does not control directly via handheld transmitter – consider the gateway if necessary.

Cardin: Identifying features

Typical protocols: 433 MHz (Cardin typical), 868 MHz (depending on series).

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Cardin: Which remote control fits?

Handheld transmitter/series	Shop category	Directly fitting	alternative
S46/S48 series (depending on frequency)	see product finder	yes – if frequency & protocol match	external receiver may be required

Cardin: Matching radio receivers

Recipient	Connection	Notice	Installation tip
Brand-specific receiver matching the series	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
Universal 433/868 MHz (when converted)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Cardin: Important information

• Cardin offers different frequencies – pay attention to the printing on the transmitter.

Crawford/ASSA ABLOY: Identifying features

Typical protocols: 433 MHz/868 MHz depending on the industrial plant.

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Crawford/ASSA ABLOY: Which handheld transmitter is suitable?

Handheld transmitter/series	Shop category	Directly fitting	alternative
Ultra/Excellent handheld transmitter (depending on series)	see product finder	yes – if frequency & protocol match	external receiver may be required

Crawford/ASSA ABLOY: Matching radio receivers

Recipient	Connection	Notice	Installation tip
Original receiver of the control	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
External universal receiver (industry)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Crawford/ASSA ABLOY: Important Notices

• Industrial controls sometimes use different radio systems; check the receiver label.

Normstahl: Identification features

Typical protocols: 433 MHz rolling code (common), 868 MHz possible with newer kits.

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

Normstahl: Which handheld transmitter fits?

Handheld transmitter/series	Shop category	Directly fitting	alternative
Normstahl series (depending on imprint)	see product finder	yes – if frequency & protocol match	external receiver may be required

Normstahl: Matching radio receivers

Recipient	Connection	Notice	Installation tip
Brand-specific 433 MHz receiver	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
Universal 433 MHz	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

Normstahl: Important information

• Normstahl had several series – check frequency/protocol before ordering.

GfA Elektromaten: Identification features

Typical protocols: Industrial controls, some proprietary; often 433 MHz/868 MHz additional receivers.

You can recognize the series by the print, the LED color, the housing shape or directly on the receiver (control).

GfA Elektromaten: Which handheld transmitter is suitable?

Handheld transmitter/series	Shop category	Directly fitting	alternative
SKX series (depending on the control system)	see product finder	yes – if frequency & protocol match	external receiver may be required

GfA Elektromaten: Matching radio receivers

Recipient	Connection	Notice	Installation tip
GfA-specific radio modules for TS controllers	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing
Universal receiver 12–24 V (potential-free)	Potential-free (relay) or bus-specific	Note supply (12–24 V)	Optimize antenna routing

GfA Elektromaten: Important information

• For TS controllers: observe potential-free contacts and supply (12–24 V).

Universal solutions: External receivers

If the appropriate handheld transmitter is no longer available or if different systems are used together, an external universal receiver solves the problem. This requires a potential-free contact or a defined input on the door control system.

product	Channels	supply	Suitable for	Tip
Universal radio receiver 4 channels 868 MHz 12-24 V	4	12–24 V AC/DC	Mixed operation, old plants	One function per channel (open/close/light).
Plug-in receiver (e.g. SOMup4)	4	Socket/drive interface	Summer systems	Installation without control cabinet wiring.

Buying advice & checklist

• What frequency is on the old handheld transmitter/receiver?
• Which protocol/series (BiSecur, SOMloq2, Multi‑Bit …)?
• How many channels are needed (1–4)?
• Line of sight or longer distances (plan antenna/extension)?
• Industrial or private use (IP protection, robust housing)?

Learning & Storage: Step by Step

The specific key combination varies depending on the system. Basic principle: Put the receiver into learning mode → press the remote control button → wait for the confirmation.

• Ensure that the system is de-energized/secured when working on the control cabinet.
• On the receiver: Briefly press the learning button (LEARN/PROG); the LED indicates learning mode.
• On the hand-held transmitter: press the desired button for 2–5 seconds until the receiver acknowledges.
• Test: Trigger the gate function, repeat if necessary or select another channel.

Range, interference & installation

Range depends on antenna position, obstacles (concrete, steel), sources of interference (WLAN, power supplies) and weather conditions.

• Mount the antenna vertically and freely, not directly on the metal housing.
• Do not kink the coaxial cable; leave the sheath undamaged.
• Keep sources of interference (cheap switching power supplies, LEDs) at a distance.

Safety & Conversion

Fixed-code handheld transmitters are considered insecure. Modern rolling code and encrypted protocols (BiSecur, SOMloq2) are state of the art. Older systems can be upgraded with an external receiver.

Product finder & internal links

Direct jumps to the relevant categories via internal links – short, clear, SEO-friendly:

• /collections/hand-transmitter-gate-operators
• /collections/radio-receiver-gate drives
• /collections/controls
• /blog

Tip: Cross-link in each product description: "No suitable remote control? → Universal receiver" and vice versa.

Shopify & SEO: Consistent data preparation

Standard: Metadata

element	Goal/Rule	Example
Meta title	50–70 characters, main keyword at the beginning	868 MHz BiSecur handheld transmitter – Hörmann compatible | Tormeister24
Meta description	150–160 characters, keyword + benefit	Find the right remote control for your gate. Quick comparison, easy programming, top service in Mainz & Wiesbaden.
SEO URL	short, clear, hyphen instead of space	/products/hoermann-hse2-868-bs-handsender

Why this model?

Practical examples (Mainz/Wiesbaden)

Mainz: Old complex + new courtyard gate

A customer in Mainz with an older 433 MHz garage door and a new 868 MHz yard gate. Solution: External 868 MHz receiver on the garage door + 4-channel handheld transmitter → both doors on one transmitter.

Wiesbaden: Underground car park with disruptions

Interference from LED transformers. Antenna relocated, coax extended, power supplies replaced → range increased from 5 m to 25 m.

FAQ: Frequently Asked Questions

Which remote control fits my gate?

Check the frequency and protocol on your old transmitter/receiver. Then choose the appropriate brand series. If in doubt, go for a universal receiver.

Can I mix 433 MHz and 868 MHz?

Not directly. With an additional receiver, yes—then both systems can be used with one handheld transmitter.

My transmitter won’t learn – why?

Incorrect protocol, full memory, incorrect learning mode, or interference. Check receiver type and repeat the learning process.

Are old fixed-code transmitters unsafe?

Yes. Rolling code/encrypted systems are state-of-the-art. Conversion is easy.

How far does a handheld transmitter reach?

Realistically, 15–30 m, depending on the development. Antenna location and sources of interference are crucial.

Do I need an antenna?

With steel/concrete, yes. An external antenna often provides twice the range.

How many channels do I need?

One channel per function. Typically 2–4: garage door, yard gate, light, special function.

Are there compatible replica transmitters?

Yes, depending on the system. Make sure the frequency and protocol are identical. Safety first.

Can I program the transmitter myself?

Yes, with instructions. For industrial systems, we recommend professional installation.

How much does a conversion cost?

Receiver + 1-2 handheld transmitters – usually cheaper than replacing a control unit.

Contact & Conclusion