Keri Systems TM-20XMS Keri Key 2 Button Transmitter with MS Insert
- 2-button model
- Uses CR2032 coin battery
- MS Insert
- Extended range with optional, external antenna

Keri’s line of RF Transmitter the TM-20XMS offers access and security in a small, sleek, cost-effective package. Typically attached using a Key Ring, the transmitters provide a convenient way to grant access to gates and parking barriers while staying safe and dry in a vehicle. The most popular application is for gated residential communities, where residents and employees can use the transmitter buttons to access gates as they approach or to provide convenient access for the disabled. An optional proximity insert provides additional convenience so users can access other secure parts of a facility using proximity readers tied to the same access control system as the gates. The Nema 4 rated enclosure, noise reduction circuitry, adjustable read range, and the ability to remotely mount an antenna virtually guarantee a quick and painless installation. The system is FCC Part 15 and CE approved.
Keri Systems TM-20XMS Key Features
- 2-button model: Offers simple access control with two programmable buttons for versatility in operation.
- Uses CR2032 coin battery: Easy to replace battery ensures continuous operation without the hassle of recharging.
- MS Insert: Provides compatibility with proximity readers for additional secure access to facilities.
- Extended range with optional, external antenna: Ensures reliable operation over a greater distance, making it suitable for larger properties.
Keri Systems TM-20XMS Detailed Specifications
| Model | TM-20XMS |
| Battery Type | CR2032 Coin Battery |
| Button Configuration | 2-Button |
| Enclosure Rating | Nema 4 |
| Maximum Range | Adjustable with external antenna |
| Certifications | FCC Part 15, CE Approved |



