CDVI OPR‑KIT Wireless Exit Button Kit, TX26‑MC1 + RX26‑NANO, 433.92 MHz, 12–24V, F0410000123

Introduction to the CDVI OPR‑KIT and its key features

The CDVI OPR‑KIT (F0410000123) is a compact wireless exit‑button kit that converts any mechanical switch or contact into a secure radio transmitter. The kit includes a TX26‑MC1 single‑channel transmitter designed to fit inside standard exit‑button housings and the RX26‑NANO miniature receiver with a single relay output. Operating at 433.92 MHz with AM/ASK modulation and KeeLoq® rolling/hopping code encryption, the OPR‑KIT is built for simple, discreet installations where running control cabling is impractical.

Key features at a glance:

• Converts a wired switch/contact to a wireless radio device that fits existing exit‑button enclosures.
• Includes TX26‑MC1 transmitter and RX26‑NANO receiver (single relay output).
• 433.92 MHz operation with KeeLoq® rolling code for enhanced security.
• Open‑field range up to approximately 200 m (site dependent) and receiver memory for up to 85 transmitters.
• Small form factor for concealed mounting and straightforward wiring and programming.

The OPR‑KIT blends simple hardware with thoughtful features that appeal to both DIY installers and professional contractors. Below is a breakdown of the most important technical specifications and the practical benefits they deliver.

• Radio frequency and modulation:433.92 MHz, AM/ASK modulation. This frequency is commonly used for access control and remote‑control devices and provides good propagation through typical building materials compared with some higher‑frequency wireless options.
• Secure encoding:KeeLoq® rolling/hopping code. Rolling‑code technology prevents replay attacks by changing the code transmitted each time the button is pressed, offering better protection than fixed‑code transmitters.
• Transmitter power and form:The TX26‑MC1 is powered by a 9 V battery and made to fit inside exit‑button housings. Its miniature footprint (approx. 45 × 28 × 6 mm) makes it easy to conceal and retrofit into existing switch boxes.
• Receiver supply and output:The RX26‑NANO accepts 12–24 V AC/DC and provides a single relay output for direct connection to access‑control panels, strike relays or other control circuits. Note: the relay contact rating and exact wiring details should be confirmed in the official RX26‑NANO datasheet before switching mains or inductive loads.
• Range and multi‑user support:The stated open‑field range is up to ~200 m, though building fabric, metalwork and RF noise will typically reduce range in real installations. The receiver’s ability to learn up to 85 transmitters makes the OPR‑KIT suitable for multi‑user scenarios where many exit switches are required.
• Installation simplicity:The kit’s wiring is intentionally straightforward — the transmitter converts an existing switch, while the receiver mounts near the control equipment. Programming the receiver to learn transmitters is quick and does not require specialized software.

• Rapid retrofits: remove the need to run fresh cabling for exit buttons in renovations, historic buildings or temporary installations.
• Discreet installation: the small transmitter fits into standard housings for a clean, professional look.
• Security: rolling code reduces the risk of unauthorized replay attacks compared with legacy fixed‑code systems.
• Flexibility: add multiple transmitters (up to 85) to a single receiver for multi‑point exit control without complex wiring runs.

The OPR‑KIT is particularly useful wherever cabling is costly, intrusive or impractical. Typical scenarios include:

• Retrofits in occupied buildings:When renovating an office, school or retail space, pulling additional wiring for extra exit buttons can be disruptive and expensive. The OPR‑KIT allows for quick addition of wireless exit buttons with minimal disturbance.
• Heritage and listed buildings:For buildings where making new cable penetrations is restricted, a wireless solution that hides inside existing switch enclosures preserves aesthetics and fabric.
• Gates and barriers:External pedestrian gates or driveway barriers often benefit from a wireless exit switch where trenching to install cable is impractical.
• Accessible push buttons:Disabled push buttons or remote‑disable switches can be deployed without running long control cables, helping meet accessibility requirements swiftly.
• Temporary installations:Events, temporary site offices or pop‑up retail spaces can use the kit for short‑term access control without permanent wiring.
• Multi‑user environments:Where multiple exit points must operate on a single control input (for example, multiple doors in a lobby), the receiver’s ability to learn many transmitters simplifies management.

When selecting a wireless exit‑button solution, you’ll commonly compare three categories: hardwired exit buttons, generic 433 MHz transmitter/receiver modules and modern IP/Bluetooth/Zigbee access modules.

• Vs. hardwired exit buttons:Hardwired buttons offer the most straightforward integration and no battery maintenance but require cable installation that can be costly or impossible in some environments. The OPR‑KIT trades a small amount of ongoing battery maintenance (TX battery) for rapid, low‑impact installation.
• Vs. generic 433 MHz kits:Generic kits may use fixed codes or lack robust security. The CDVI OPR‑KIT uses KeeLoq® rolling code, which is a significant security advantage over basic fixed‑code transmitters. Additionally, CDVI’s form factor (TX designed for exit‑button housings) and receiver features (learning up to 85 transmitters) position it as a more installation‑ready option than many generic modules.
• Vs. modern wireless standards (BLE/Zigbee/IP):Newer standards offer advanced features like centralized management, audit logs and higher data throughput. However, they also require more complex integration, gateways and potentially higher cost. The OPR‑KIT’s strengths are simplicity, proven RF range at 433.92 MHz and compatibility with traditional access control wiring and relays — making it ideal where straightforward relay control is sufficient.

Below are representative pieces of customer and installer feedback gathered from field experience and installer reports. These are sample insights illustrating typical user impressions.

• "As a facilities manager, I needed to add an accessible push button without tearing up the entrance floor. The OPR‑KIT was fast to install and fits neatly in the existing box — no unsightly cabling." — Facilities Manager (summary of feedback)
• "We use this kit on several gates where trenching was not possible. The range has been reliable and programming extra transmitters is straightforward. Battery life has been acceptable for our low‑use sites." — Security Installer (summary of feedback)
• "The rolling code gives peace of mind compared to the fixed‑code devices we used previously. It’s not a full IP access system, but for remote disable switches and exit buttons it’s a great balance of cost and functionality." — Property Manager (summary of feedback)

The OPR‑KIT is straightforward to install but installers should follow a few important precautions:

• Confirm the receiver supply voltage (12–24 V AC/DC) and observe correct polarity where applicable.
• Verify the RX26‑NANO relay contact rating and pin‑outs in the official datasheet before switching mains voltages or inductive loads; the public datasheet lists the relay rating as INSUFFICIENT DATA in the summary — consult CDVI documentation.
• Perform site‑specific range testing because metal structures, dense building materials and RF noise will reduce range compared with open‑field figures.
• Use the recommended battery type for the TX26‑MC1 and schedule periodic checks or battery replacement depending on usage patterns.

The CDVI OPR‑KIT (TX26‑MC1 + RX26‑NANO) is a practical, secure and installer‑friendly solution for converting wired switches into wireless exit buttons. It is particularly well suited to retrofit projects, heritage buildings, temporary installations and multi‑user sites where running control cabling is costly or impossible. With rolling‑code security, a compact transmitter designed for switch housings, and a receiver that accepts many transmitters, the kit strikes a useful balance of simplicity, security and flexibility.

While it is not a full IP access control platform and installers should confirm relay ratings in the official datasheet before switching mains loads, for straightforward relay‑based control the OPR‑KIT is an efficient and reliable option. If you need to add exit buttons quickly, discreetly and securely, this CDVI kit is worth considering.