20dBm RS485 Wireless Modem Set 433MHz

€72.69
+ €3.99 Shipping

20dBm RS485 Wireless Modem Set 433MHz

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20dBm RS485 Wireless Modem Set 433MHz

€72.69

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  • Brand: Unbranded
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Product details

20dBm RS485 Wireless Modem Set 433MHz

Compact dual-module set: each unit measures 74 × 24 × 16 mm (excl. antenna), weighs ~45 g, and features rugged plastic + metal housing in blue finish. Powered by 4.5–5.5 V DC via RS485 terminal block (5V, GND, A+, B−). Operates across 433–458.5 MHz with 255 channel options and user-adjustable transmit power (−40 to +20 dBm, 10 discrete levels). Receiver sensitivity of −114 dBm ensures robust signal capture in noisy industrial or urban UK settings. Supports transparent serial transmission at baud rates 1200–19200 bps (default 9600); over-the-air data rate spans 10–100 kbps. Built-in MCU handles serial framing and ID-based routing. Works reliably from −25 °C to +75 °C — suitable for loft-mounted smart meters or outdoor gate controllers. Both modules are factory-matched and ready for immediate deployment: no pairing required. Supports flexible topologies — point-to-point (2 pcs), or multi-drop (≥3 pcs) with master/slave roles mirroring wired RS485 behaviour. Only one device transmits at a time, avoiding data collisions. Configuration via AT commands (e.g., AT+ENABLE=1) is possible exclusively during the first three minutes post-power-on — ensuring production systems remain locked to verified settings. Proven in UK smart home integrations (Wiser, Home Assistant), industrial telemetry (Modbus temperature/pressure sensors), security (wireless access control readers), and infrastructure (remote LED signage, water/gas metering), this set eliminates trenching costs while retaining full RS485 electrical and logical compatibility.
  • Brand: Unbranded
  • Category: Modems
  • Colour: Blue
  • Fruugo ID: 536097050-1085635322
  • EAN: 902445014164
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Safety Warnings: Warning to keep away from water to prevent electric shocks.
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Manufacturer
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  • Chen ShaoMao
  • Lixian Maisite Trading Co., Ltd.
  • Group 8
  • Wugong Tun
  • Lixian Changde
  • Changde
  • CN
  • 415506
  • [email protected]
  • 13207704292

Responsible Person in the EU
The following information outlines the contact information for the responsible person in the EU. The responsible person is the designated economic operator based in the EU who is responsible for the compliance obligations relating to the relevant product sold into the European Union.

  • e Vatmaster Consulting GmbH
  • e Vatmaster Consulting GmbH
  • RaiffeisenstraBe 2 B11
  • Rodgau
  • DE
  • 63110
  • [email protected]
  • 49 61062699873
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  • STANDARD: €7.68 - Delivery between Thu 08 October 2026–Wed 14 October 2026

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