Larmmoduler

The ALM-04-MRTU CR is an MP3 alert module that brings audible and relay-based alarm signalling into RS-485 monitoring and control networks. It speaks Modbus RTU, so it can be polled or driven from SCADA software and HMI panels that already use that protocol.Four isolated dry-contact digital inputs, each supporting up to 8 alarm modes, detect field events. A single Form A relay output can drive an external device, while the audio line out feeds an external amplifier or sounder. Up to 64 MP3 files are held on a micro SD card, which also stores the module configuration.Typical choices include building and factory automation, security and visitor call systems, and fire alarm applications. The module mounts on a panel, wall or DIN rail and accepts a 9 to 28 VDC supply with reverse polarity protection.ApplicationsBuilding AutomationSecurity AutomationMachine AutomationFactory AutomationTesting EquipmentGuest/Visitor BellFire Alarm System

The ALM-Horn-BR CR is a piezo alarm siren that gives an audible and visual alert from a single dry-contact signal. Its water-clear upper cover houses 8 blue and 8 red ultra-bright LEDs, with blue indicating system status and red indicating alarm status. Four selectable alarm tones are set by DIP switch, so one unit can be matched to the sound expected on site.The unit accepts a dry-contact input from alarm sources such as security, building automation or fire alarm devices, with NC or NO input mode selected by switch. A single open-collector output is available for passing the signal on. The siren is rated at 120 ±5 dB at 10 cm / 3.0 kHz without the waterproof membrane, and carries IP43 protection.Choose this model when you need a self-contained alarm siren rather than a networked device. The -WF and -MRTU variants add WLAN and RS-485 Modbus connectivity respectively. The ALM-Horn-BR CR is supplied for panel or wall mounting and operates from -20 ~ +75 °C.ApplicationsAudible and visual alarm signalling from dry-contact security alarm outputs (SA)Alarm signalling from building automation outputs (BA)Alarm signalling from fire alarm outputs (FA)

ALM-Horn-MRTU-BR is a piezo alarm siren that reports and responds over RS-485 using Modbus RTU, so it can be polled or controlled from SCADA, HMI or Modbus utility software. It accepts a dry contact signal on its single digital input and provides one open collector output, making it suitable for passing alarm conditions between field devices and a supervisory system.The -BR version has a water clear upper cover fitted with 8 blue and 8 red ultra-bright LEDs. Blue indicates system status and red indicates alarm status. DIP switches select one of four alarm tones and set the input to NO or NC operation. The siren produces 120 ± 5 dB at 10 cm / 3.0 kHz without the waterproof membrane.The unit runs from 12 ~ 48 VDC with reverse polarity protection and draws 0.48 W in standby. It measures 119 x 119 x 48 mm, mounts on a panel or a wall, carries an IP43 rating and operates from -20 ~ +75 °C.ApplicationsAlarm signalling from dry contact sources such as security, building and fire alarm systemsRemote alarm monitoring and control in SCADA, HMI and Modbus-based supervisory systemsLocal audible and visual alarm indication in industrial and building automation installations

The ALM-Horn-RGB CR is a network-connected alarm siren and status beacon. A piezo transducer sounder is combined with 8 user-definable RGB 3 colour Ultrabright LEDs behind a water clear upper cover, so audible and visual alerts can be given from a single unit. It is powered over Ethernet and supports Modbus TCP, with a built-in web server included.One digital input accepts dry contact signals from devices such as SA, BA or FA outputs, with NC/NO input mode selectable. A single open-collector output and four selectable alarm tones allow the unit to be matched to the alarm scheme in use. The Modbus interface makes it straightforward to integrate with SCADA software, HMI panels and utility systems for monitoring or control.The housing carries an IP43 rating and the unit operates from -20 ~ +75 °C. It accepts a 12 ~ 48 VDC input range and can be installed on a panel or wall.Sounder rated at 100 ± 5 dB @10cm/3.0 KHz (without waterproof membrane)Piezo transducer siren with four selectable alarm tonesApplicationsBuilding AutomationSecurity AutomationMachine AutomationFactory AutomationTesting EquipmentFire Alarm System