Mobile Safety

For Park rangers


Detects Falls & Alerts Help

Advanced fall detection for 24/7 alerts to team and employers

Goes With You Everywhere

Fully mobile for personal safety at any location

Keeps All Informed

Device and event notifications to keep employers informed


Highly Water Resistant

Water-resistant to 1 meter (3.3 ft) for 30 minutes. Can be worn in inclement weather

Stay safe and protected anywhere

Numera® Libris 2® delivers immediate two-way communication, even from remote locations and harsh environments. It provides hands-free, two-way voice calls in the event of a fall, giving confidence to park rangers that they are never truly alone in the field.

The Numera Personal Emergency Response System meets the challenges of employers monitoring lone rangers, giving them reliable activity and emergency updates. No matter the type of risk the job presents, 24-hour emergency communication provides the peace of mind every lone worker needs.

The Libris 2 can communicate anywhere that is in range of cellular service.

starting at $29.99/month 

Fully mobile to go everywhere

The Numera Libris 2 is the perfect personal safety device for anyone who goes out into nature alone. It uses 4G/LTE technology for improved cellular range.

Get peace of mind with a lightweight, discreet device that can send location updates to your employer or team member. In the event of an emergency, get help with the click of a button.

want to learn more?

Tell us how we can help by giving us a call or filling out the form below

  • This field is for validation purposes and should be left unchanged.

Numera Libris 2 is a cellular device. For proper operation, Libris 2 requires adequate cellular coverage. Poor cellular coverage may result in the inability to place a call or automatically detect a fall. Check with your customer service team for known coverage limitations.
As with all location-based services, it may not always be possible to determine your location. Multi-level buildings, parking garages, and even dense urban areas can make it difficult for satellites and cell phone towers to locate your exact location.
In an emergency, please provide your response team with as much information as possible about your location.
This product does not replace a diagnostic or treatment decision made by a physician and is not intended to be used for the diagnosis, treatment, mitigation or prevention of a disease

Privacy PolicyTerms Of ServiceCookie Policy