Products of Grothe
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Homepage:
www.grothegmbh.de |
Grothe: Door Communication, Door Bell Systems & Signal Technology for Industry and Business
Grothe products at Lieske & Co. – proven door intercom systems, door bell solutions and signal devices for residential and commercial properties in professional B2B purchasing for over 130 years.
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1892
Year Founded
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130+
Years of Experience
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2,400+
Employees (Urmet Group)
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Urmet
Part of the Urmet Group
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About Grothe – A Tradition in Door Communication since 1892Grothe, now part of the internationally operating Urmet Group, is one of Germany's best-known manufacturers of door intercom systems, door bell installations and signal technology. Founded in 1892 in Hennef (Rhineland), Grothe has shaped generations of building entrances and is synonymous with reliable door communication. The product range today includes video door intercom systems, audio intercom systems, door bell pushes and chimes, signal devices and accessories – for single-family homes as well as multi-family buildings, commercial properties and industrial sites. As a trade partner, electrical contractors, system integrators and building technology specialists benefit from a comprehensive product range, excellent technical support and proven compatibility with common building installation standards. |
► Quality Standards
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Grothe Product Families at a Glance
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◆ Video Door Intercom Systems
Modern video door stations and monitors for single- and multi-family buildings. Modular ALPHA door stations with flexible expandability. 2-wire and IP-based systems for easy installation and secure identification at the entrance. |
◆ Audio Intercom Systems
Wired and wireless audio intercom systems for all building sizes. Proven 2-wire technology for straightforward retrofit installations. For residential units, office buildings and industrial sites with multiple subscribers. |
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◆ Door Bell Systems & Transformers
Door bell push buttons, chimes, call systems and transformers – from classic flush-mounted installations to the modern AirLink wireless bell system. For residential, commercial and public buildings. |
◆ Signal Devices & Alerting
Optical and acoustic signal devices for industrial and commercial installations. Alert systems, buzzers, strobe lights and alarm sirens for reliable signalling in industry, warehousing and building management. |
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B2B Application Areas
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Multi-family Buildings
Scalable intercom systems for residential complexes with many units – 2-wire and IP
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Commercial & Office
Access control and visitor communication for office complexes, clinics and administrative buildings
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Industry & Logistics
Acoustic and optical signal devices for manufacturing facilities, warehouses and industrial premises
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Why Grothe for B2B Purchasing?
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► Grothe Products in the Shop by Category
| ✓ Intercom Systems | ✓ Door Bell Material |
| ✓ Video Door Surveillance | ✓ Signal Devices, Optical & Acoustic |
| ✓ Door Bell Cable YR | ✓ Signal Devices Measurement |
Frequently Asked Questions about Grothe
Which intercom systems does Grothe offer for multi-family buildings?
Grothe offers 2-wire intercom systems (compatible with URMET 1122 systems) as well as video door stations with monitor sets for multi-family buildings. The modular ALPHA range allows expansion with cameras, access control and smart home integration.
Can Grothe door bell systems be retrofitted?
Yes. The proven 2-wire technology allows Grothe systems to be easily integrated into existing buildings without extensive rewiring. The AirLink wireless system even enables cable-free extensions.
For which commercial applications are Grothe signal devices suitable?
Grothe signal devices (optical and acoustic) are suitable for manufacturing halls, logistics centres, warehouse areas and commercial buildings. They reliably signal process events, shift starts or alarms and are supplied in various protection classes.
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Grothe Products – Request a B2B Quote Now
Volume enquiries, tiered pricing and project support for electrical contractors, specialist dealers and system integrators.
► Contact sales@industry-electronics.com
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Lists
- spareparts ( 1 )
Categories with products from Grothe
- Electrics ➤ Cables ➤ Data lines ➤ Data cables coaxial ( 1 )
- Electronics ➤ Energy ➤ Accumulators ➤ Other batteries ( 2 )
- Light & Sound ➤ Illuminants ➤ Bulbs ➤ Glow lamps and dwarf ( 2 )
- Light & Sound ➤ Illuminants ➤ LED lamps ➤ LED Retrofit BAx ( 2 )
- Electrics ➤ Industrial Material ➤ Control devices / Pilot devices ➤ Signal devices, optical and acoustic ( 71 )
- Electrics ➤ Industrial Material ➤ Industrial Connectors ➤ CEE form connectors / combinations ( 1 )
- Electrics ➤ Installation ➤ Cable joint sets ➤ Casting resin and cable sleeves ( 4 )
- Electrics ➤ Installation ➤ Home Automation ➤ Bus systems - radio ( 1 )
- Electrics ➤ Installation ➤ Low power material ➤ Video Door Monitor ( 78 )
- Electrics ➤ Installation ➤ Modular devices / equipment installation ➤ Staircase time switch / time relay ( 1 )
- IT-Equipment ➤ Networks ➤ Industrial Networking ➤ Switches ( 1 )
- Technology ➤ Security Technology ➤ Access Control Systems ( 20 )
- Technology ➤ Security Technology ➤ Alarm Systems ➤ Centrals ( 51 )
- Technology ➤ Security Technology ➤ Sensors ➤ Motion Detectors ( 10 )
- Technology ➤ Telecommunication ➤ Accessories ( 1 )
- Technology ➤ Tools ➤ Pliers ➤ Crimping pliers ( 1 )
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 Grothe IB 1033/132 1033/132Grothe IB 1033/132 Dual detector 1033/132The DUAL curtain detector has an IR sensor and a microwave sensor. The microwave sensor operates at a frequency of 10.525 GHz and its sensitivity is adjustable. The detection range of the microwave is ... Lieske Part No.: 1056465 Mfg Part No: 1033/132 Type: IB 1033/132 |
110,14 EUR
 ≈ £95.05 | ≈ $127.10 plus delivery charges
Delivery time on requestinfo_outline
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Grothe LS 1033/285 1033/285Grothe LS 1033/285 light barrier 200cm 1033/285 Light barrier set for interior and exterior skin monitoring. Installation between window and roller shutter is possible. The maximum range is 20 m indoors and 10 m outdoors. Detection is carried out ... Lieske Part No.: 2131519 Mfg Part No: 1033/285 Type: LS 1033/285 |
635,66 EUR
≈ £548.57 | ≈ $733.55 plus delivery charges
Delivery time on requestinfo_outline
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Grothe GM 1033/352 1033/352Grothe 1033/352 GM glass break detector IP67, 2-wire alarm line m.Klebe Set This passive glass break detector is suitable for installation on the glass surfaces of windows and doors. The detector has a ceramic detector element and has a monitoring radius of 2 m. The detector ... Lieske Part No.: 975829 Mfg Part No: 1033/352 Type: GM 1033/352 |
85,98 EUR
≈ £74.20 | ≈ $99.22 plus delivery charges
Delivery time on requestinfo_outline
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Grothe SM 1033/353 1033/353Grothe SM 1033/353 Vibration detector 1033/353 This seismic vibration detector is suitable for installation on windows and doors. The detector monitors using a microprocessor. The sensitivity can be adjusted in a test mode. An alarm message is ... Lieske Part No.: 2037186 Mfg Part No: 1033/353 Type: SM 1033/353 |
122,74 EUR
≈ £105.92 | ≈ $141.64 plus delivery charges
Delivery time on requestinfo_outline
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Grothe AK 1033/600 1033/600Grothe AK 1033/600 Battery 1033/600 The maintenance-free battery is designed for use in outdoor sirens. In the event of an alarm, the siren is powered by the battery. The battery is charged via the alarm control panel. The housing is ... Lieske Part No.: 2106509 Mfg Part No: 1033/600 Type: AK 1033/600 |
54,68 EUR
≈ £47.19 | ≈ $63.10 plus delivery charges
Delivery time on requestinfo_outline
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Grothe AK 1033/601 1033/601Grothe AK 1033/601 Battery 1033/601 The maintenance-free battery is designed for use in alarm control panels. The capacity of 7 Ah allows the control panel to continue operating for several hours in the event of a power failure. The ... Lieske Part No.: 2106510 Mfg Part No: 1033/601 Type: AK 1033/601 |
60,74 EUR
≈ £52.42 | ≈ $70.09 plus delivery charges
Delivery time on requestinfo_outline
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Grothe MK 1033/705 1033/705Grothe MK 1033/705 magnetic contact attachment die-cast aluminum housing for rolling/up-and-over doors The magnetic contact is suitable for use with alarm control panels. It is mounted on roller or swing gates. The built-in reed relay is activated when a magnet approaches. The housing is made of ... Lieske Part No.: 1325516 Mfg Part No: 1033/705 Type: MK 1033/705 |
48,60 EUR
≈ £41.94 | ≈ $56.08 plus delivery charges
Delivery time on requestinfo_outline
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Grothe MK 1033/713 1033/713Grothe MK 1033/713 magnetic contact installation plastic housing white 2-wire The magnetic contact is suitable for use with alarm control panels. It is installed in the frame of windows or doors. The magnet is installed in the part to be opened. The built-in reed relay is ... Lieske Part No.: 2111026 Mfg Part No: 1033/713 Type: MK 1033/713 |
7,32 EUR
≈ £6.32 | ≈ $8.45 plus delivery charges
Delivery time on requestinfo_outline
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Grothe SA 1051/003 1051/003Grothe SA 1051/003 Radio LED status display 1051/003 for radio extension 1068/011 and 017, and central unit 1051/020, frequency 868.35 MHz bidirectional, incl. lithium battery Lieske Part No.: 1060500 Mfg Part No: 1051/003 Type: SA 1051/003 |
109,54 EUR
≈ £94.53 | ≈ $126.41 plus delivery charges
Delivery time on requestinfo_outline
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Grothe VK 1051/004 1051/004Grothe VK 1051/004 wireless camera 1051/004 for Zeno Pro 1051/020, video compression H.264, 2MPX, lens 3.6 mm, bidirectional radio frequency: 2.4 GHz Lieske Part No.: 1062602 Mfg Part No: 1051/004 Type: VK 1051/004 |
503,50 EUR
≈ £434.52 | ≈ $581.04 plus delivery charges
Delivery time on requestinfo_outline
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Grothe AZ 1051/020 1051/020Grothe AZ 1051/020 wireless alarm center 4G 1051/020 The wireless alarm control panel is suitable for small to medium-sized surveillance systems. The control panel can manage 80 sensors in the alarm control panel. The sensors can be divided into 3 areas. Lieske Part No.: 1062600 Mfg Part No: 1051/020 Type: AZ 1051/020 |
997,33 EUR
≈ £860.70 | ≈ $1,150.92 plus delivery charges
Delivery time on requestinfo_outline
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Grothe KP 1051/025 1051/025Grothe KP 1051/025 radio control panel LED 1051/025 The radio control unit is used to activate or deactivate the burglar alarm system. Communication with the control panel is bidirectional at a frequency of 868 MHz. The radio range is 100 m. It is ... Lieske Part No.: 1060491 Mfg Part No: 1051/025 Type: KP 1051/025 |
188,26 EUR
≈ £162.47 | ≈ $217.25 plus delivery charges
Delivery time on requestinfo_outline
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Grothe FB 1051/035 1051/035Grothe FB 1051/035 radio remote control 1051/035 The remote control is used to activate or deactivate the burglar alarm system. Communication with the control panel is bidirectional at a frequency of 868 MHz. It is operated using 4 buttons. An LED ... Lieske Part No.: 106050 Mfg Part No: 1051/035 Type: FB 1051/035 |
91,84 EUR
≈ £79.26 | ≈ $105.98 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/101 1051/101Grothe IR 1051/101 wireless motion detector 1051/101 The wireless motion detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector detects angles of 110° and ... Lieske Part No.: 1060492 Mfg Part No: 1051/101 Type: IR 1051/101 |
134,45 EUR
≈ £116.03 | ≈ $155.16 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/102 1051/102Grothe IR 1051/102 wireless motion detector PET 1051/102 The wireless motion detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector detects angles of 110° and ... Lieske Part No.: 1060498 Mfg Part No: 1051/102 Type: IR 1051/102 |
144,90 EUR
≈ £125.05 | ≈ $167.21 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/103 1051/103Grothe IR 1051/103 wireless motion detector DUAL 1051/103 The dual wireless motion detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. Detection is dual, with an IR sensor ... Lieske Part No.: 1060493 Mfg Part No: 1051/103 Type: IR 1051/103 |
359,99 EUR
≈ £310.67 | ≈ $415.43 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/105 1051/105Grothe IR 1051/105 wireless motion detector EX PET 1051/105 The wireless motion detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector detects angles of 110° and ... Lieske Part No.: 1060496 Mfg Part No: 1051/105 Type: IR 1051/105 |
356,21 EUR
≈ £307.41 | ≈ $411.07 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/107 1051/107Grothe IR 1051/107 wireless motion detector DUAL CURTAIN 1051/107 for Zeno Pro 1051/020, frequency 868 MHz bidirectional, incl. lithium battery CR2 3.0 V Lieske Part No.: 1060494 Mfg Part No: 1051/107 Type: IR 1051/107 |
299,50 EUR
≈ £258.47 | ≈ $345.62 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/108 1051/108Grothe IR 1051/108 wireless motion detector CURTAIN 1051/108 The wireless motion detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The curtain detector detects an angle of ... Lieske Part No.: 1060499 Mfg Part No: 1051/108 Type: IR 1051/108 |
130,68 EUR
≈ £112.78 | ≈ $150.80 plus delivery charges
Delivery time on requestinfo_outline
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Grothe IR 1051/109 1051/109Grothe IR 1051/109 wireless motion detector TRIPLE 1051/109 for radio extension 1068/011 and 017, Zeno Pro 1051/020, frequency 868 MHz bidirectional, incl. lithium battery 3 V CR123A Lieske Part No.: 1062601 Mfg Part No: 1051/109 Type: IR 1051/109 |
481,20 EUR
≈ £415.28 | ≈ $555.30 plus delivery charges
Delivery time on requestinfo_outline
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Grothe SD 1051/122 1051/122Grothe SD 1051/122 smoke and temperature detector 1051/122 for Zeno Pro 1051/020, frequency 868 MHz bidirectional, incl. lithium batteries 3 V CR123A Lieske Part No.: 1062605 Mfg Part No: 1051/122 Type: SD 1051/122 |
226,73 EUR
≈ £195.67 | ≈ $261.65 plus delivery charges
Delivery time on requestinfo_outline
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Grothe MK 1051/201 1051/201Grothe MK 1051/201 radio magnetic contact white 1051/201 The wireless opening detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector is mounted on the frame of ... Lieske Part No.: 1060502 Mfg Part No: 1051/201 Type: MK 1051/201 |
119,93 EUR
≈ £103.50 | ≈ $138.40 plus delivery charges
Delivery time on requestinfo_outline
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Grothe MK 1051/202 1051/202Grothe MK 1051/202 radio magnetic contact brown 1051/202 The wireless opening detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector is mounted on the frame of ... Lieske Part No.: 1060501 Mfg Part No: 1051/202 Type: MK 1051/202 |
119,93 EUR
≈ £103.50 | ≈ $138.40 plus delivery charges
Delivery time on requestinfo_outline
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Grothe MK 1051/203 1051/203Grothe MK 1051/203 radio magnetic contact white AUX 1051/203 The wireless opening detector reports a break-in to the burglar alarm system. Communication with the control center is bidirectional at a frequency of 868 MHz. The detector has connection terminals ... Lieske Part No.: 1060503 Mfg Part No: 1051/203 Type: MK 1051/203 |
133,39 EUR
≈ £115.12 | ≈ $153.93 plus delivery charges
Delivery time on requestinfo_outline
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