Linear ACT-31DH 1-Channel Factory Block Coded Key Ring TRANS PROX Transmitter and 26-bit Wiegand HID-Compatible Proximity Tag, Black
One tag for every access door.
A black key ring transmitter with a 26-bit Wiegand HID-compatible proximity tag, block coded to one of 15 facility codes. It carries both of your door credentials on one ring.

One credential should not mean carrying two.
Access control systems often depend on readers and receivers that expect different formats. This fob covers a proximity tag and a transmitter in a single key ring device.
Built for everyday access
The ACT-31DH is a single-button key fob made to be enrolled quickly and carried every day.
HID or Linear format
The fob offers choices of HID compatibility and Linear format to suit the reader system you run.

facility codes
Each fob is block-coded to one of 15 facility codes.
Block-coded facility codes
Each fob is block-coded to one of 15 facility codes, which makes enrollment quick and easy.
Long-lasting batteries
Lithium batteries are built in for long service between replacements.
Ruggedly built
The housing is made for everyday use and is listed with a Highly Rugged feature.
Everything you need to know.
| Brand | Linear |
| Model | ACT-31DH |
| Product Type | Key Fob |
| Color | Black |
| Number of Buttons | 1 |
| Encryption | Wiegand 26-bit |
| Compatibility | AM-DPR and most HID compatible proximity readers, MegaCode receivers |
| Height | 2.3" |
| Width | 1.3" |
| Depth | 0.5" |
| Packaged Quantity | 1 |
| Country of Origin | CN |
Linear ACT-31DH 1-Channel Factory Block Coded Key Ring TRANS PROX Transmitter and 26-bi...
This access control transmitter features factory block coding with one of over 1,000,000 unique codes, virtually eliminating code duplication risks. The 10-second time-out prevents system shutdown from continuous transmission.
Includes a 26-bit Wiegand proximity tag compatible with standard 125-kHz proximity readers. The tag is pre-programmed to match the transmitter's block code for seamless access requests.
Block-coded design allows quick enrollment—simply enter the first and last codes into your access controller to program an entire series of transmitters. Facility codes can be customized for additional security.
What's Included:
Key fob transmitter
Quick-disconnect key ring
Long-lasting lithium batteries (5-year service life)
Features:
Available in single and 4-channel configurations
Ruggedly built for daily use
Quick and easy enrollment
Compatible with standard proximity reader systems
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Linear ACT-31DH, ready to order.
- ACT-31DH TRANS PROX Key Fob
- Quick-disconnect Key Ring
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