to help veterans
Protect Your Safe from Tampering — Instantly
Safe Alarm
Most Owners Never Know
Until It’s Too Late.
Don’t be next!
Meet StealthALERT
Trusted by the industry
How it works
Protect and monitor anything, anywhere.
Add a second layer of security with Simtek.
Leave your sensor in any dark and motionless spot like
a safe, storage unit, boat or rv, or just about anywhere
you want to get notified when accessed.
Even a drawer at home or the office.
Automatic alerts your phone within 15 seconds of
an intrusion or disturbance.
Your sensor has three ways to detect disturbances: light, infrared motion and vibration. When any sensor
is triggered, you'll be notified via text message sms
and push notifications.
storage space.
light or vibration.
text message and notifications.
Three Detection Sensors
Complete Protection Against Intruders
Detects Common Attacks
Angle Grinders, Torches,
Hot
Drill Bits
The infrared motion sensor detects thermal events like sparks from an angle grinder, blow torches, hot drill bits and more.
Door Opening, People
The light, motion or vibration sensor will trigger anytime the safe is accessed.
Movement, Vibration
Someone bumping into, or running off with the safe? The vibration sensor will trigger first.
Add Trusted
3rd Parties
Encrypted
Technology
Low Battery
Alerts
Engineered For Low Signal Environments
Add trusted
friends and family
Add trusted family and friends to receive the same alerts you do. Add more layers of protection by adding them to receive alerts. It's free and unlimited.
Works Without
Power or WiFi
1-year battery life with normal use and a 4G LTE modem with a pre-installed global SIM—reliable and effortless.
Reliable
Even In Safes
The StealthALERT is engineered to work in low-signal areas like safes, storage, or out in the field.
4G LTE Cellular
Connectivity
Automatically connects to major networks worldwide
- More secure than WiFi
- Pre-installed with global simcard
- Maximum reliability and worldwide coverage
Automatic
Reliable Alerts
SMS and Push Alerts
- Alerts within 20 seconds globally
- Built-in redundancy, onboard
backup antenna
Secure,
Encrypted Alerts
End to end encryption ensures strong privacy
Monitor
Environmental
Conditions
Environmental information
at your fingertips
- Temperature and humidity
- Approximate location
- Trigger type
Companion
App for Your
Phone
View and manage everything with the Simtek app
- Name your sensor
- Customize the alert messages
- Allow multiple subscribers per device
Alerts
on Bumps
and Movement
- New to 2nd-Generation Simtek Sensor
- Accelerometer detects bumps and movement
- Keeping you a step ahead
Temperature
and Humidity
Every alert includes temperature and humidity
Accessories for
Performance
Get the most out of your sensor
- Braided metal antenna extension cable
- Higher power upgraded plug-in antenna
Data Plan
Required
No contracts.
No cancellation fees. Period.
- Cancel anytime
- Monthly or annual option
- One low price for maximum peace of mind
Location triangulation
Approximate location of alerts via cellular triangulation
What’s inside
Light Sensor
GSM Cellular Modem
Rugged Outer Shell
Infrared Motion Sensor (PIR)
Antenna Plug
Removable GSM Simcard
Rechargeable Battery
Dimensions
Antenna Port
Onboard Antenna
Infrared Motion Sensor
Light Sensor
Accelerometer
Infrared Motion LED
Micro USB
Temperature
& Humidity Sensor
Specs
| Dimensions | 1.48” x 3.66” x 3.26” |
| Weight | 4.3 oz /0.26 lbs |
| Material | ABS plastic |
| Battery life | Up to 1 year |
| Sensors | Light and Passive Infrared Motion (PIR) |
| Sensivity | 15’ x 15’ motion range (big room in house) = any visible light |
| Connectivity | Cellular (GSM) |
| Cellular Range | 200+ countries worldwide, with Duo’s Hight-perfomance GSM |
| Battery Type | Rechargeable Lithium Ion Battery: RCR123a 650 mah |
| Warranty | 1 year limited with free technical support |
Full Year of Battery Life
1 year of battery life on a single charge (10 alerts per month avg.)
If your safe has power, you can keep it plugged in 24/7.
A closer look
24/7 Monitoring
Up to 1 year battery life averaging 10 alerts monthly.
- Receive an alert when it's time to recharge
- Use included micro usb cable
Dataplan Required
30 day free trial included with every sensor.
- No Hidden Fees, No Contracts
- Cancel Anytime, For Any Reason
- Buy dataplans on Simtek app after free trial
- Details
$4.20 USD monthly unlimited data plan required
Frequently Asked Questions
StealthALERT uses light, motion, and vibration sensors to detect tampering — such as prying, impact, or forced entry. The moment it’s triggered, it sends an alert directly to your phone via 4G LTE.
Yes. If the safe door is opened or even slightly moved, the sensor detects changes in light and vibration. You’ll receive an instant notification — even if you’re miles away.
Yes. It works effectively inside most standard gun safes and security boxes. As long as it can briefly connect to the 4G network when triggered, it will send out alerts.
No Wi-Fi or wiring required. StealthALERT is entirely wireless and runs on a rechargeable battery. It uses cellular (4G LTE) to send alerts anytime, anywhere.
The battery typically lasts between 6 and 12 months per charge, depending on usage. You’ll get a notification when it’s time to recharge.
The alert is triggered instantly — before a thief has time to disable or remove the device. Its discreet size makes it hard to find, and alerts are sent in real time.
It works with gun safes, home safes, document safes, cash boxes, and biometric safes. If it fits inside and the door closes fully, StealthALERT can monitor it.
Yes, as long as there’s 4G cellular coverage. If the signal is weak, the device will attempt to reconnect and send data once the signal is restored.
Yes. StealthALERT requires a subscription: $4.99/month or $49.99/year, with unlimited alerts and no contracts. This covers 4G data and 24/7 monitoring.
StealthALERT is portable and can be moved between safes. However, it can only monitor one location at a time. For multiple safes, we recommend one unit per safe.
