---
title: Shelly Wall Display + Blu H&T Smart Control Panel With Temperature - Humidity & LUX Sensors
date: 2025-10-13T05:35:36Z
modified: 2026-05-02T08:02:15Z
permalink: "https://tech.co.za/product/shelly-wall-display-blu-ht-smart-control-panel-with-temperature-humidity-lux-sensors/"
type: product
status: publish
excerpt: Manage your smart devices from one centralized place with Shelly Wall Display, now combined with Shelly BLU H&T for precise climate control
wpid: 554676
product_brand:
  - Shelly
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Smart Home
featured_image: "https://tech.co.za/wp-content/uploads/2025/10/SHELLY-WALL-DISPLAYBLU-HTWa.png"
---

## Specifications



| Quantity | Value |
| --- | --- |
| **Physical** |  |
| Size (HxWxD): | 85x85x30 mm / 3.35×3.35×1.18 inch |
| Weight: | 180 g / 6.35 oz |
| Screw terminals max torque: | 0.4 Nm / 4.43 lbin |
| Conductor cross section: | 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded, and bootlace ferrules) |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting: | Wall box |
| Shell material: | Plastic, aluminum, glass |
| Shell color: | Black or white |
| **Environmental** |  |
| Ambient working temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| **Electrical** |  |
| Power supply: | 230 VAC, 50/60Hz |
| Power consumption: | < 1 W |
| **Output circuits ratings** |  |
| Max. switching voltage: | 230 VAC |
| Max. switching current: | 5 A |
| **Sensors, meters** |  |
| Internal-temperature sensor: | No |
| Ambient temperature sensor | Yes |
| Humidity sensor: | Yes |
| Light sensor: | Yes |
| **Radio** |  |
| Wi-Fi |  |
| Protocol: | 802.11 b/g/n |
| RF band: | 2401 – 2495 МHz |
| Max. RF power: | < 20 dBm |
| Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) |
| Bluetooth |  |
| Protocol: | 4.2 |
| RF band: | 2400 – 2483.5 MHz |
| Max. RF power: | < 4 dBm |
| Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) |
| **Microcontroller unit** |  |
| CPU: | MTK6580 |
| RAM: | 1 GB |
| Flash: | 8 GB |
| **Firmware capabilities** |  |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 2 URLs per hook… |
| Scripting: | No |
| MQTT: | Yes |

## Basic wiring diagrams

## ![shelly-wall-display-4-inch-wirind-diagram.png](https://kb.shelly.cloud/__attachments/243531777/shelly-wall-display-4-inch-wirind-diagram.png?inst-v=5bf62ed3-a19e-46f0-82f2-f0643494e2e9)

### Legend



| **Terminals** | **Wires** |  |  |
| --- | --- | --- | --- |
| **SW** | Switch input terminal | **N** | Neutral wire |
| **O** | Output terminal | **L** | Live (230 VAC, 50/60 Hz) wire |
| **N** | Neutral terminal |  |  |
| **L** | Live (230 VAC, 50/60 Hz) terminal |  |  |