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iKey SL-88-461 Military Grade Rugged Keyboard
This product has reached End of Life (EOL) status and is no longer in production. Manufacturer support, updates, and spare parts may be discontinued.
All information is provided for reference only. Availability cannot be guaranteed.
Please contact us to discuss current alternatives or recommended replacement models.
The iKey SL-88-461 Military Grade Rugged Keyboard is built around MIL-STD-461E electromagnetic compliance, supporting deployment on military platforms such as surface ships, submarines, and aircraft. Its robust ABS polycarbonate housing is sealed to NEMA 4X standards, protecting against dust and moisture for continuous-duty use in harsh, electrically noisy environments. The keyboard features industrial silicone rubber keys with tactile mechanical feedback rated for over 10 million actuations, providing reliable, tactile input during extended field use. Integrated mounting holes enable secure installation on vehicles or equipment, ensuring shock-resistant operation that meets MIL-STD-810G shock and vibration standards.
Operating effectively from -20°C to +60°C and withstanding 100% humidity, it interfaces via USB or PS/2 for compatibility with a wide range of military computing systems. This model combines industrial-grade durability and electromagnetic shielding to maintain stable input performance in demanding, vibration-prone, and EMI-heavy conditions.
SL-88-461 Features
- 10-Year Lifespan
- Designed To Meet MIL-STD-461E
- Green Backlit Keys
- 88 Key Functionality
- Various Keyboard and Language Layout Options
- Customisation Available On Request
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Product Type
Manufacturer
Certifications & Standards
Ruggedness
IP Rating
Mounting Format
Country Of Manufacture
United States
Backlight
Red
Case Material
ABS Polycarbonate
Certifications
NEMA 4X UL60950, FCC Part 15 Class B
Custom Options Products
Keyboard Layout,Keyboard Language,Cable Type,Cable Length,Interface
Dimensions
11.40" x 6.30" x 1.86" (w-h-d) 285.8mm x 158.8mm x 45.7mm
Housing Colour
Black
Humidity
100% Humidity Resistant
Cable
LENGTH: 4 ft coiled (1.2m)
Compatibility
PS/2: All Windows Operating Systems USB: All Windows and Macintosh OS
Flammability
PRINTED CIRCUIT BOARD: 94 VO SILICONE OVERLAY: 94HB INTERFACE CABLE: 94 VO
Function Keys
12 Keys
Key Feedback
Tactile with Mechanical Snap
Key Material
Industrial Silicone Rubber
Key Switch
MATERIAL: Industrial silicone rubber LIFE: 10 million cycles TRAVEL: 0.055 in. (1.4mm) ACTUATION FORCE: 7.05 oz +/- 1.06 oz (200g +/- 30g) FEEDBACK: Tactile with mechanical snap
Lifespan
>10 Million Actuations
No. Of Keys
88
Pointing Device
No Pointer
Power
PS2: 200mA@5V (from Keyboard port) USB: 200mA@5V (from CPU port)
Product Weight
2 lbs +/- 0.10 lbs (0.91 kg +/- 0.05kg)
Shock
3 x 11 ms Pulses of 50g on each of 3 Axes
Switch Force
200g (+/- 30g)
Switch / Key Travel
0.055 in (1.4mm)
Vibration
POWER SPECTRAL DENSITY: 0.04g/Hz FREQUENCY RANGE: 20Hz - 2 kHz DURATION OF TEST PER AXIS: 3 hours
Shock
3 x 11 ms Pulses of 50g on each of 3 Axes
Temperature Rating
STORAGE: -40C to +90C (-40F to +194F) OPERATING: -20C to +60C (-4F to +140F)
The iKey SL-88-461 Military Grade Rugged Keyboard is designed and engineered for use in demanding environments where reliability, durability are essential. The SL-88-461 supports a wide range of industries and operational applications.
Common deployment industries include: Aerospace, Defence And Military, Emergency Services, Energy and Utilities, Industrial Manufacturing, Marine And Offshore.
Across these sectors, the SL-88-461 is typically used in applications such as Aircraft Cockpit And Avionics Support Systems, Industrial HMI And Machine Interfacing, Marine Bridge And Vessel Control Systems, Military Vehicle-Mounted Computing (MDTs / VMCs), Process Control And Shop-Floor Monitoring, SCADA And Control-Room Access, Secure Communications And Command-And-Control.
These examples demonstrate the versatility of the SL-88-461 across both industry sectors and real-world operational use cases. Its suitability extends well beyond the scenarios listed above, making it a flexible solution for a broad range of requirements.
For further information, or to assess whether the SL-88-461 is appropriate for your specific application, please contact us.
The iKey SL-88-461 Military Grade Rugged Keyboard comes with a 3 Years Manufacturers Limited Warranty + Option To Extend against defects in workmanship and materials, effective from the date of shipment (unless otherwise agreed in writing).
To receive service under this warranty, the eligible product, iKey SL-88-461 Military Grade Rugged Keyboard, must be presented to RUGGED in the United Kingdom.
For more information about the iKey SL-88-461 Military Grade Rugged Keyboard or to arrange repairs and services not covered by the warranty, please visit the warranty section on our website.
Do you need further details about the iKey SL-88-461 Military Grade Rugged Keyboard, or would you like to discuss a customised solution or demonstration?
At RUGGED, we recognise that every project has its own unique demands. If you have any questions about the iKey SL-88-461 or need a custom Rugged Keyboard solution designed specifically for you, our team of technical experts are ready to assist you.
Alternative Products
Explore alternative products offering comparable features, performance, and build quality to the model you are currently viewing.
Our related solutions provide variations in configuration, functionality, and form factor to suit different application requirements. Each option has been selected to meet the same high standards of reliability and performance.
Browse the related products below to identify the most suitable fit for your deployment.
PM-18-HP
- Impact-resistant silicone rubber overlay
- IP and NEMA 4X sealed for moisture and dust protection
- Integrated two-button Hula Point pointing device
- Over 10 million keystrokes durability

SK-102-M
- NEMA 4X and IP rated for moisture and dust protection
- Tested to MIL-STD-810 for vibration and shock resistance
- Integrated HulaPoint pointing device
- Industrial silicone rubber keys with tactile feedback

SLK-102-FSR
- Sealed ABS polycarbonate housing
- Integrated force sensing resistor pointing device
- Backlit keys for low-light usability
- Meets NEMA 4X IP65 and MIL-STD-810G standards

DU-5K
- NEMA 4X sealed design
- MIL-STD-810G shock and vibration tested
- Industrial silicone rubber keys
- HulaPoint II pointing device

Having trouble finding what you're looking for?
Selecting the correct solution for your specific application and operating environment requires careful consideration.
At Rugged, our engineering and product specialists can advise on specifications, environmental suitability, mounting requirements, connectivity, and lifecycle planning to ensure the right fit for your deployment.
With extensive industry experience and a focus on reliability and performance, we help you select a solution aligned with your operational requirements.
Frequently Asked Questions
RUGGED offers free technical support for the lifetime of products you purchase. This includes help with setup, troubleshooting, and integration. Support is available online or directly from the technical team
Rugged keyboards are engineered for environments where standard keyboards would quickly fail. Unlike typical office keyboards, a rugged keyboard offers enhanced durability and protection against elements such as dust, dirt, liquids, and extreme temperatures. They feature robust construction, often incorporating sealed casings and industrial-grade components to ensure reliable performance in demanding conditions.
Key differences include:
- Durability: Rugged keyboards are designed to endure significant impact, vibration, and continuous use in challenging settings.
- Environmental Protection: They typically boast high Ingress Protection (IP) ratings, indicating resistance to water and dust—essential for industrial, marine, or outdoor applications.
- Material and Build: Constructed from rugged materials like stainless steel or silicone, they offer longevity that standard plastic keyboards cannot match.
- Functionality: Many rugged keyboards include features such as integrated pointing devices (e.g., trackballs or touchpads), backlighting for low-light conditions, and specialised key layouts for specific industrial tasks.
Rugged Limited provides a range of rugged keyboard solutions tailored for various harsh environments, ensuring sustained operation where standard peripherals would falter.
Rugged keyboards are engineered to perform reliably in a variety of challenging outdoor environments. They are built with robust materials and often feature sealed designs to protect against ingress from dust, dirt, and water, which are common concerns in outdoor applications. Many models of rugged keyboards are also designed to withstand extreme temperatures, vibrations, and shocks, making them ideal for field operations, industrial settings, and other outdoor work where standard keyboards would quickly fail.
For those requiring a dependable input solution in harsh conditions, a rugged keyboard provides the necessary resilience. Rugged Limited offers a range of these durable keyboards that ensure continuous functionality, even when exposed to the unpredictable elements of an outdoor environment.
Rugged Limited offers a range of rugged keyboards that are specifically engineered for panel mounting. These keyboards are designed for seamless integration into various industrial and commercial control panels, kiosks, and other equipment where a durable and reliable input solution is essential.
Our panel mount rugged keyboards are built to withstand challenging environments, often featuring robust stainless steel construction, sealed keypads for protection against dust and liquids, and vandal-resistant designs. This ensures consistent performance and longevity, even in demanding operational settings.
When selecting a rugged keyboard for panel mounting, it’s important to consider factors such as the required IP rating, key layout, and connectivity options to ensure it meets the specific needs of your application.
A rugged keyboard is specifically engineered for resilience, offering superior protection against elements like dust, dirt, liquids, and extreme temperatures. These keyboards are built with robust materials and construction techniques to ensure reliable performance in industrial, military, and outdoor settings where standard peripherals would fail.
Rugged Limited provides a range of rugged keyboards that are not only tough but also deliver consistent functionality when it matters most. They are an essential component for maintaining operational efficiency in challenging work conditions, ensuring data input remains uninterrupted and accurate.
Explore our selection of rugged keyboards designed for ultimate durability and performance.
Rugged Limited provides a range of rugged keyboards designed to withstand challenging industrial environments, including those found on forklifts and heavy machinery. These keyboards are built to be extremely durable, offering resistance to liquids, dust, and extreme temperatures, which are common conditions in such operational settings.
The design of many rugged keyboard models includes features that facilitate easy integration into various industrial setups. This often involves robust casings and adaptable mounting solutions, ensuring a secure and stable fit even with vibrations or impacts inherent to machinery operation. Their resilience makes them a reliable interface for data entry and control in demanding applications. Rugged Limited’s extensive experience ensures these keyboards meet the rigorous demands of industrial use.
Rugged Limited offers a range of durable keyboards specifically engineered to meet the stringent requirements of cleanroom settings. These rugged keyboard solutions are often fully sealed and easy to clean, preventing the accumulation of dust and contaminants crucial for maintaining cleanroom protocols.
Our industrial keyboards are built with materials and designs that can withstand harsh cleaning agents and frequent sanitization without compromising performance or integrity. This makes them an ideal rugged keyboard choice for pharmaceutical, medical, and other controlled environments where hygiene and reliability are paramount.
Rugged Limited offers a range of durable keyboards, and while the exact level of environmental protection can vary by model, many of our rugged keyboards are engineered to withstand exposure to liquids.
These robust input devices are often designed with features to prevent water ingress, making them suitable for industries where spills, splashes, or wash-downs are common. For specific details on the waterproof ratings of a particular rugged keyboard, it’s always best to consult the individual product specifications.
Choosing a rugged keyboard over a consumer keyboard is essential in environments where standard equipment simply won’t withstand the conditions. Rugged keyboards are specifically engineered to endure extreme temperatures, dust, dirt, liquids, and vibrations, which are common challenges in industrial, medical, and military settings.
Unlike consumer keyboards, which are designed for typical office use, a rugged keyboard features robust construction, often incorporating sealed components and durable materials like stainless steel or silicone. This enhanced build quality prevents ingress of contaminants and protects internal electronics, ensuring reliable performance and a significantly longer lifespan.
Furthermore, Rugged Limited’s range of rugged keyboards are built for reliability in the harshest conditions, minimising downtime and maintenance costs often associated with frequent replacement of less durable alternatives.








