# Shelly Plus Smoke Alarm Is A Wire-Free Battery Operated Smart Photoelectric Smoke Alarm

## Shelly Plus Smoke Alarm Is A Wire-Free Battery Operated Smart Photoelectric Smoke Alarm

The Shelly Plus Smoke Alarm is a wire-free, battery-operated photoelectric smoke alarm that connects directly to Wi-Fi and Bluetooth with no hub required, effective at detecting slow, smouldering fires. On detecting smoke it triggers a loud onboard alarm (>85dB) plus an instant phone notification, and can be linked via scenes or webhooks to trigger other Shelly devices — for example cutting power or unlocking doors — during an emergency.

### Specifications

**SKU**

SHELLY PLUS SMOKE ALARM

**Brand**

Shelly

**Category**

Smart Home

**Key Specs**

Protocol: Wi-Fi 802.11 b/g/n + Bluetooth 4.2; Battery: 1x CR123A 3V, approx. 5 years life; Sensing type: photoelectric smoke sensor; Alarm output: >85dB; CPU: ESP32; Mounting: ceiling-mount; Dimensions: 86x86x31mm; Operating temp: 0°C to 55°C; Colour: White

## Details

- **Price:** 1339.0 ZAR
- **Vendor:** Shelly
- **Type:** Smart Home
- **Tags:** Nology, Shelly, Smart Home

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1339.00 ZAR | In stock |

## Images

- Shelly Plus Smoke Alarm Is A Wire-Free Battery Operated Smart Photoelectric Smoke Alarm

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/shelly-shelly-plus-smoke-alarm)
> Updated: 2026-07-07