VTech DM112 Digital Audio Baby Monitor User Manual

The VTech DM112 Safe & Sound Digital Audio Baby Monitor is a wireless audio system with a baby unit (transmitter) and parent unit (receiver), featuring crystal-clear sound transmission, visual sound indicators, adjustable volume, low battery and out-of-range alerts, and up to 1,000 ft outdoor range. It supports English prompts and is designed for parental supervision in residential settings. Below are the key specifications, setup, operation, features, and troubleshooting instructions. Not a substitute for proper adult supervision.

1. Preparations 2. Description 3. Precautions 4. Specifications 5. Installation 6. Check Operation 7. Operating Features 8. Configuration 9. Troubleshooting

Preparations

Unpack the monitor and ensure all components are present: baby unit, parent unit, power adapter for baby unit, power adapter for parent unit, user's manual. For battery installation in parent unit (optional for backup): Slide open battery compartment cover, insert 2 AAA alkaline batteries (not included) observing polarity (+/-), replace cover. Unit turns on automatically. Batteries provide backup power; remove for long-term storage. Adult setup required.

WARNING! Use only alkaline batteries; do not mix old/new or types. Do not dispose in fire. Save these instructions.

Description

The VTech DM112 is a digital audio baby monitor with wireless transmission on 5 channels (1921.536-1928.448 MHz). Features include sound-activated monitoring, visual LED indicators for sound levels, adjustable speaker volume (5 levels), alerts for low battery/out-of-range, belt clip for portability, and standby mode. Baby unit has microphone and power controls; parent unit has speaker, volume buttons, and indicators.

Applications: Audio monitoring for baby sleep/safety; Parental aid in home.

Precautions

CAUTION! Adult setup and supervision required. Test before each use. Keep out of reach of children.

WARNING! Not for medical use or substitute for care. Keep baby unit and cords 3 ft (1 m) from crib/baby to prevent strangulation—never place in crib. Do not use near water; unplug before cleaning. Use only supplied adapters (Baby: 6V AC 300mA; Parent: 6V DC 400mA). Pacemaker users: Maintain 6-inch distance. Dispose batteries per local regulations. Avoid interference sources. Connect adapters vertically or floor-mounted only.

WARNING! Cords must be out of baby's reach; secure to avoid tripping hazard.

Specifications

Electrical: Frequency: 1921.536-1928.448 MHz (5 channels); Baby adapter: 117V AC 60Hz to 6V AC 300mA; Parent adapter: 100-120V AC 60Hz to 6V DC 400mA.
Batteries: Parent unit: 2 AAA alkaline (not included, for backup); No recharge.
Range: Up to 1,000 ft (300 m) outdoors, 160 ft (50 m) indoors; Varies by environment.
Operating Ambient: 32°F to 104°F (0°C to 40°C); Humidity: Up to 95% non-condensing.
Dimensions: Not specified.
Other: Visual sound indicators (5 LEDs); Crystal controlled PLL synthesizer; Compliance: FCC/IC.

Installation

Plug baby unit adapter into power jack and unswitched AC outlet; unit turns on (green POWER light). Plug parent unit adapter into power jack and unswitched AC outlet; unit turns on (green POWER/LINK light). For backup use, install batteries in parent unit. Position baby unit at least 3 ft (1 m) from crib, out of reach, facing baby. Place parent unit within range, at least 3 ft from baby unit to avoid feedback. Keep cords inaccessible to children. No wiring required.

Check Operation

Place units in same room. Ensure both on (hold POWER until light off then on—green). If flashing, move closer (min 3 ft) and wait 1 min for sync. Speak into baby unit mic; listen on parent unit speaker, check visual indicators light up.

Operating Features

Monitoring: Parent unit speaker transmits baby sounds; visual indicators (green LEDs 1-3 moderate, red 4-5 high) show levels.
Key Features: Volume adjust (5 levels), low battery alert (flashing red/beeps every 10 min), out-of-range alert (beeps every 30 sec), standby mode, belt clip.
Alerts: No link (flashing light); feedback if too close.
Power: AC adapters required; batteries for parent backup only.

Configuration

Adjust via buttons on parent unit: Volume up/down during use. No menu programming.

Setting	Default	Options	Comments
Speaker Volume	Level 3	5 levels (Mute to High)	Press VOL +/-; beeps at min/max; mute shows visuals only
Power Mode	AC	AC/Battery Backup	Insert batteries for portable backup

Range optimization: Keep away from interference.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Baby unit POWER light off	No power.	Connect adapter; ensure fully inserted.
Parent unit POWER/LINK light off or flashing	No power/link.	Connect adapter or insert new AAA batteries; move closer (min 3 ft).
High-pitched noise	Units too close.	Separate at least 3 ft (1 m); lower volume.
No sound	Volume low/muted; low baby sound.	Increase volume; reposition baby unit closer to baby (min 3 ft).
Beeps repeatedly	Out of range/low battery.	Move closer (min 3 ft); replace batteries if flashing.
Low battery light flashes/beeps	Batteries low.	Replace with 2 new AAA; connect to AC.
Sound interruptions	Interference/range.	Avoid electronics; reposition; sync by powering off/on.
No response	Power issue.	Disconnect/reconnect power and batteries; wait 1 min for sync.

Care: Clean with soft damp cloth; avoid water/sunlight; store batteries removed.