The TM-40 from Keri Systems is a key 4 button transmitter designed for seamless access control and security management. Its compact design and user-friendly interface make it an ideal solution for both residential and commercial applications, ensuring reliable performance and ease of use.
Keri Systems TM-40 Key 4 Button Transmitter Features
- Compact Design: The TM-40 is lightweight and portable, making it easy to carry and use in various environments.
- Four Button Functionality: With four programmable buttons, users can easily control multiple access points or functions with a single device.
- Reliable Range: Designed to provide a strong signal, the TM-40 ensures reliable operation over considerable distances, enhancing security coverage.
- Easy Programming: The user-friendly programming process allows for quick customization, enabling users to set up the transmitter according to their specific needs.
- Long Battery Life: Equipped with efficient power management, the TM-40 ensures long-lasting performance, reducing the need for frequent battery replacements.
Keri Systems TM-40 Key 4 Button Transmitter Specifications
| Model | TM-40 |
| Type | 4 Button Transmitter |
| Frequency | Frequency: 433 MHz |
| Battery Type | CR2032 Lithium Battery |
| Dimensions | 2.5 x 1.5 x 0.5 inches |
| Weight | 0.05 lbs |
| Operating Temperature | -4°F to 140°F |



















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