Weatherproof 2-way PA wall-mount speaker system
100 V PA speaker system with an excellent sound
13 cm polypropylene bass-midrange speaker and dome tweeter
4 power taps
Power selector switch with 8 Ω operating position
Excellent efficiency for a speaker of such a compact size
Available in black (SW) or white (WS) plastic with respectively lacquered aluminium grille, modern design
Supplied with matching metal wall brackets

The natural gas alarm is designed to continuously monitor the methane concentration. Adopting catalytic type gas sensor and advanced electrical technology, it responds quickly and becomes highly sensitive with stable performance and low false alarm. Once the surrounding methane concentration reaches the alarm threshold, it will quickly send a visual and audible alarm signal to remind the user to take immediate action.

· High performance sensor, send alarm signal timely
· Operate stably and identify gas type effectively
· Intelligent linkage to close the pipeline valve and start the exhaust fan
· A built-in high volume buzzer, 70 dB (A) at 1 m (3.28 ft)

Technical characteristics: - DC voltage: 1000 V - AC voltage: 750 V - AC current: 200 / 1000 A - Resistance: 200 / 20 кΩ - Circuit control: yes - Option for retention function - Low battery indication - Overload protection - Weight: 310 g (including battery)

Technical characteristics:

- Power: 12W
- Color temperature: white / warm white
- Rated voltage: 12VDC
- Power Supply: control gear – driver for 12VDC (not included in the set)
- Type of LED: SMD5050
- Luminous flux: 1050lm
- Protection against dust and moisture: IP20
- Housing: aluminum 500x42x15mm
- Colour of the housing: grey
- Diffuser: PMMA
- Long life span

· Split-spectrum sensor technology
· Test and silence features in one single button
· Loud sound output over 85 dB(A) at 3 meters
· Low quiescent current consumption
· Surface-mount device (SMD) circuit board design
· Low battery warning signal
· Built-in battery, easy installation
· Silenced by a working infrared remote controller
· Wireless interconnected with a maximum of 24 devices
· SKU number: DHI-HY-SA30A-R8, DHI-HY-GC20B-R8

· Compatible with WisuLink wireless interconnected products
· Dual communication based on Ethernet and Wi-Fi
· Wall mount or freestanding on the table
· Support for OTA software upgrades
· Supports 4 LED indicators to illustrate the status of power, fault, alarm
and Internet connectivity