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September 08, 2026 3 min read
Overview and specifications for ELK's Two-Way Wireless technology line: the M1XRFTW transceiver plus keyfob, door/window, and universal 3-zone sensors compatible with the ELK M1 Control.
Product overview and specifications for ELK's Two-Way Wireless technology for the M1 Control — a lineup of two-way wireless sensors and the M1XRFTW transceiver that revolutionizes reliability and functionality of wireless peripherals for homes and businesses.
ELK's industry-leading two-way wireless technology for the M1 Control revolutionizes the reliability and functionality of wireless peripherals for homes and businesses.
In true two-way communication, sensors transmit signals and re-send if acknowledgement is not received. The M1 Wireless Transceiver transmits signal acknowledgement and system status back to each sensor — "The ONLY Way is Two-Way!"
The M1XRFTW two-way wireless transceiver allows an ELK-M1 or ELK-M1EZ8 control to accept ELK's complete line of two-way wireless sensors.
| Zone Capacity | Up to 144 individual wireless zones (sensors/points) |
| Data Bus | Operates from the 4-wire RS-485 Data Bus; multiple receivers may be connected to a single M1 or M1EZ8 control for redundancy and greater coverage |
| Firmware | Flash memory for firmware updates |
| Operating Frequency | 902 MHz to 928 MHz |
| Sensitivity | >105 dBm |
| Operating Temperature | 0 to +120°F |
| Operating Voltage | 12 Volts DC |
| Current Draw | 25mA receiving, 85mA transmitting |
| Housing Dimensions | 6.75" x 4.69" x 1.13" |
This wireless keychain remote (fob) provides 4 push buttons, LED feedback indicator, and Elk's industry-leading two-way technology. From the remote, it's possible to arm, disarm, check status, and trigger a panic alarm.
This slim wireless door & window sensor is ideal for door and window applications and features Elk's industry-leading two-way technology.
This exceptionally thin wireless window sensor is perfect for double-hung and casement style wood/vinyl windows and features Elk's industry-leading two-way technology.
This universal sensor has 1 built-in reed switch plus 2 external closed-circuit zone inputs, allowing it to secure up to 3 doors, windows, etc. It also features Elk's industry-leading two-way technology.
Coming soon at time of publication: ELK two-way PIR, smoke detector, glass break sensor, water sensor, temperature sensor, sounder, and more.
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