Malem MO4 - Body-Worn Bedwetting Alarm

Malem™ Ultimate Bedwetting Alarm (MO4)

The Malem™ Ultimate Bedwetting Alarm (MO4) is Malem’s most powerful body-worn alarm, designed for children who need a stronger prompt to wake. It combines sound, vibration and flashing light to deliver a clear, immediate alert, ideal for deep sleepers.

This Purple version uses a consistent single 1 tone, providing a reliable alert each time with no changing sounds.

The sensor detects the first sign of moisture and triggers the alarm instantly. With regular use, children learn to wake, respond, and achieve dry nights.

Key Benefits

• Strong single tone + vibration + light alert
• Designed for deep and heavy sleepers
• Sound, vibration, or both for flexible use
• Consistent tone supports learning
• Simple, reliable and effective

Features

• Body-worn alarm clipped to pyjamas
• Single tone alert (no changing sounds)
• Vibration mode
• Flashing light
• Tamper-proof settings
• Compatible with Easy-Clip©, Flat Plate and Bed-Mat* can be purchased separately

What’s Included

• Malem™ Ultimate alarm unit (MO4)
• Sensor (selected type)
• 2 x AAA batteries
• Instructions
• Progress chart

How to Use

Attach the alarm to your child’s pyjama top near the collarbone. Position the sensor based on the type selected, either clipped to underwear or placed inside an absorbent pad.

When wetness is detected, the alarm activates immediately. Over time, this helps your child wake earlier and stay dry through the night.

Sensor Options

Easy-Clip© Sensor
Clips securely onto underwear for a reliable fit.

Flat Plate Sensor
Placed inside an absorbent disposable pad worn inside underwear, or between two pairs of close-fitting underwear.

Sensors are replaceable and not included in the guarantee.

Technical Specifications

• Model: MO4 (Ultimate / “Ultimate 1S”)
• Alarm type: Wearable
• Sound: Single tone
• Vibration: Yes
• Light: Flashing
• Modes: Sound / Vibration / Combined
• Sensor compatibility: Easy-Clip©, Flat Plate, Bed-Mat*
• Size: 57 × 55 × 14mm
• Weight: 53g
• Batteries: 2 x AAA

Important Information

• Suitable for deep sleepers
• This Purple version uses a single tone
• Guaranteed for one year (excluding sensors, batteries and damage & misuse)

Support and Advice

Need support? Watch our Bedwetting Detective video for helpful information about bedwetting and how alarms work.

Want more guidance? Visit our bedwetting advice page for practical support for children, parents and carers.

Recommended Add-Ons

• Malem Flat Plate Replacement Sensor - Keep a spare ready for uninterrupted treatment
• Malem Easy-Clip Replacement Sensor - Alternative sensor style for Malem alarm
• Bed-Mat sensor - Mat sits on the bed instead of attaching to clothing.
• Bedding Protection Range - Protect mattresses and make clean-up easier
• Bedwetting, Toileting Books - Helpful resources for children and families

Customer Review

“It was wonderful relief for us, the overnight bedwetting fully stopped after 3 weeks.”
- Iveta