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Visonic MCT-550-PERS Supervised Wireless Flood Detector

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Visonic MCT-550-PERS Supervised Wireless Flood Detector

Visonic Part Number: MCT-550-PERS
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Product Description

The Visonic MCT-550 PERS is a fully supervised wireless flood detector compatible with PowerMax® and other Visonic PowerCode™ wireless security systems. It is designed to detect the presence of water in basements, yachts and many others residential and commercial applications, providing early warning of developing floods.

In default mode, the Visonic MCT-550 PERS transmits each flood alert message a single time. However, users may program the detector to repeat the alert every three minutes until the device is reset. To ensure secure communication, transmissions use a PowerCode 24-bit ID command code, which is selected from 16 million possible combinations and is therefore unique and virtually impossible to accidentally reproduce. A smart anti-collision algorithm prevents signal jamming by simultaneous transmissions from multiple devices.

Visonic's MCT-550 PERS transmits supervisory reports, including battery condition, to the wireless control panel or receiver at regular intervals – ensuring system integrity and functionality at all times.

The easily installed MCT-550 PERS wireless flood detector is available in various frequency bands according to international standards, and is approved for use in most countries.


  • Detects water at ground level
  • Ideal for basements, yachts and holiday houses
  • Easy installation: includes a 3m (10ft) sensor cable for high positioning of the transmitter
  • Fully supervised
  • Over 16 million possible code combinations
  • Smart anti-collision algorithm supports multiple simultaneous transmissions
  • 3 Volt standard Lithium battery
  • Compatible with PowerMax and other Visonic PowerCode wireless systems
  • Approved and available in various frequency bands according to international standards


CompatibilityCompatible with PowerMax and PowerMax+ alarm systems, MCR-308 receiver or any other PowerCode alarm system.
Frequency (MHz)315, 433.92, 868.95, 869.2625 or other frequency according to local requirements.
Transmitter's ID Code24-bit digital word, over 16 million combinations, pulse width modulation.
Overall Message Length36 bits
Message RepetitionOne-shot transmission (default) or once every 3 minutes (selectable).
SupervisionSignaling at 60-minute intervals (U.S. version) or 15 minute interval (UK version), or according to the local standards.
Response to Tamper EventTamper report every 3 minutes (until the tamper switch is restored).
Power Source3V Lithium battery, Panasonic type CR-2 or equivalent.
Nominal Battery Capacity750 mAh
Current Drain6µA STBY, 17mA average in operation (including LED)
Battery Life with LED on3 years (for typical use)
Battery SupervisionAutomatic reporting of battery condition data as part of any transmission.
ALARM REPORTEvery 20 sec. for the first 3 minutes. Every 3 min. for the next 27 minutes. After this period the supervision message will include alarm signal until the event comes to an end.
Length of Flood Sensor Cable3 meters (10 ft)
Weight of Flood Sensor CableApprox. 60 gr.
Operating Temperature0°C to 49°C (32°F to 120°F).
Dimensions81 x 22 x 23.5 mm (3-3/16 x 7/8 x 15/16 in.).
Weight (including battery, without cable)45 g (1.6 oz)
StandardsMeets FCC Part 15, Directive 1999/5/EC and EN 50131-1 Grade 1 Class II.

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