SMLight · SLZB-MR1
Zigbee, Thread · Home Assistant ZHA, Zigbee2MQTT, OpenThread Border Router
This is a Zigbee coordinator: check support in ZHA or Zigbee2MQTT.
Zigbee, Thread · Zigbee coordinator, Zigbee router (repeater), Thread radio (OpenThread RCP)
Check the firmware mode, controller and any required separate module.
Manufacturer images
Two radio SoCs in one box — CC2652P7 and EFR32MG21 — so the SLZB-MR1 runs a Zigbee network and a Thread network in parallel from a single PoE or USB-C coordinator.
26 specifications from manufacturer documentsWe deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.
The right choice starts with specifications
SKU: SLZB-MR1
Specifications checked against the linked manufacturer documents.Checked 18 October 2026
Connectivity — what it meansThe wireless link or network the device uses. Wi-Fi connects straight to the router; Zigbee, Thread and Bluetooth Mesh work through a hub or gateway. | Zigbee, ThreadZigbee 3.0 and Thread (Matter over Thread) at the same time, each on its own radio chip; a second Zigbee network can run instead of Thread [1] |
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Number of radios — what it meansHow many independent radio chips are inside. With two, Zigbee and Thread run at the same time, each on its own channel; with one, the protocol is chosen by firmware. | 2Two independent radio chips: Zigbee and Thread (or two Zigbee networks) run at the same time, each on its own channel. The ESP32 adds Wi-Fi and Bluetooth; counting those, the maker calls the series “quad radio” [1] |
Radio chips — what it meansThe radio chip model (both chips on dual-radio models). It determines the available firmware, support in Zigbee2MQTT and ZHA, Thread capability and memory headroom for large networks. Texas Instruments (CC) and Silicon Labs (EFR32) chips use different firmware and update methods. | Texas Instruments CC2652P7, Silicon Labs EFR32MG21 [1] |
Connection to the server — what it meansHow the coordinator talks to Home Assistant or another server. With Ethernet and PoE it can sit in the middle of the house, far from the server; Wi-Fi needs no cable but depends on wireless quality; USB plugs straight into the server. | Ethernet, PoE (power and data on one cable), USB, Wi-FiEthernet, Wi-Fi or USB mode is switched in the web interface or with the button, with no mechanical switches. PoE means power over the same Ethernet cable [1] |
Compatible software — what it meansWhich smart-home software the coordinator works with according to the maker's documentation: ZHA and Zigbee2MQTT for Zigbee, OpenThread Border Router for Thread, Z-Wave JS for Z-Wave. The coordinator only works together with such software on a server or mini PC. | Home Assistant ZHA, Zigbee2MQTT, OpenThread Border RouterBoth radio chips work with Zigbee2MQTT and ZHA, and with OpenThread Border Router for Thread. Two networks can run at once, e.g. ZHA and Zigbee2MQTT; default network ports: 6638 for EFR32MG21, 7638 for CC2652P7 [1] |
Transmit power — what it meansThe coordinator's maximum radio output. Higher power gives a steadier link to distant devices, but range in a home depends more on walls and the number of routers in the network. | 20 dBm+20 dBm on each of the two radio chips (the CC2652P7 has a built-in amplifier) [1] |
Antenna — what it meansAn external detachable antenna can be turned or replaced with another; an internal one sits inside the housing. The antenna gain (dBi) is in the note. | External, detachableTwo SMA (female) connectors, one per radio chip; two rotatable 2.4 GHz +5 dB antennas are included. Wi-Fi and Bluetooth use a PCB antenna [1] |
Home Assistant — what it meansHow the device connects to Home Assistant: a built-in integration, a Zigbee coordinator, Matter or the maker’s cloud integration. | Native integrationZHA is built into Home Assistant; Zigbee2MQTT is installed as a separate add-on. Home Assistant also has the SMLIGHT SLZB integration for managing the adapter itself [1] |
Max connected devices — what it meansHow many devices can run on this coordinator's network according to the manufacturer. If the figure is for direct connections and the network grows through routers, this is noted. | 300Up to 300 end devices on the CC2652P7 network and up to 200 on the EFR32MG21; across two networks the maker states up to 500 in total [3] |
Wireless range — what it meansThe stated radio range, usually in open space. Walls and floors cut it noticeably. | Not stated by the manufacturer |
| Control processor | ESP32 (Espressif) [1] |
| Ethernet controller | LAN8720 (Microchip) [1] |
| USB/UART converter | CP2102 [1] |
| Zigbee and Thread simultaneously | Yes [1] |
| Radio chip memory | CC2652P7: 144 + 8 KB RAM, 704 KB flash; EFR32MG21: 96 KB RAM, 1024 KB flash [1] |
| Radio firmware stack | TI Z-Stack (CC2652P7), Silicon Labs Ember/EZSP (EFR32MG21) [1] |
| Radio network ports | 6638 for EFR32MG21, 7638 for CC2652P7 (default) [4] |
| Bluetooth | BLE via the ESP32 and ESPHome firmware [3] |
Operating modes (firmware) — what it meansWhich role the radio can take with the maker's official firmware: a Zigbee coordinator creates and runs the network, a Zigbee router only extends an existing one, a Thread radio (RCP) works with an OpenThread border router, and MultiPAN runs Zigbee and Thread on one chip at once. | Zigbee coordinator, Zigbee router (repeater), Thread radio (OpenThread RCP)Zigbee coordinator and router per the product page. For Thread the radio works as an RCP and the OpenThread border router runs on the server (the OTBR add-on in Home Assistant); the maker lists OTBR on the device itself only for the U series (MRxU). Multiprotocol is not needed: Zigbee and Thread run on separate chips [2] |
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Management and updates — what it meansWhat is available for managing the coordinator itself: a web interface in the browser, firmware updates over the network without removing the device, VPN for remote access. | Web interface, firmware updates over the network, VPN (e.g. WireGuard)SLZB-OS web interface with login; radio chip and ESP32 firmware updates over the network without physical access; WireGuard VPN for connecting from another location [1] |
| LEDs and buttons | 6 LEDs (2 for the ESP32 and 2 per radio chip), multifunction button (mode, reset, etc.) [1] |
Power source — what it meansWhere the device gets its power: 230 V mains, an adapter, USB, batteries or a built-in battery. | PoE (over Ethernet), USBPoE 48 V or USB-C 5 V DC; both sources can be connected at once, no power switch is needed [1] |
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Rated power — what it meansThe rated or maximum power draw from the spec sheet. It sets the load on the socket and the energy use. | 1.5 WUp to 1.5 W with both radio chips running [1] |
| Device power input | PoE 48 V or USB-C 5 V DC [1] |
Mounting — what it meansHow and where it is installed: in a wall box, on a wall or ceiling, on a DIN rail, on a table or in a socket. | Adhesive tape, screw-fixed (surface), DIN railWith double-sided tape or screws (included). For a DIN rail or wall the maker points to 3D models of holders, printed separately [1] |
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Dimensions — what it meansThe device’s size in millimetres as the maker states it. Check that it fits the wall box, niche or shelf. | Not stated by the manufacturer |
Weight — what it meansThe device’s weight without packaging, per the maker. | Not stated by the manufacturer |
| Housing material | ABS, ventilated housing [1] |
| Package contents | Adapter, 2 × 2.4 GHz antennas, screws, screwdriver, ruler [1] |
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We deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.
A website order is submitted for confirmation without charging your card. The payment method and final amount are agreed with a manager before payment.
The warranty is at least 12 months. The exact period and conditions for equipment and installation work are stated in the sales documents and the accepted proposal. Further support is agreed for each project.
Current conditions are published on the Return policy page. Email office@casasmart.md with your order number for the steps relevant to your situation. Statutory consumer rights continue to apply.
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