RTI Integrators: Be sure to update the firmware before installing the U3.
This will ensure the full feature set is available to your customers.
The U3 remote floats if dropped in water for easy retrieval. It uses inductive charging and wireless programming updates, allowing it to be completely sealed for exceptional (IP-66 rated) protection. The U3 combines the convenience and low power requirements of an electronic paper display with fully programmable soft-touch buttons for quick access to commonly used functions. The display is easy to read in bright light—even outdoors—and can be customized to each project via the award-winning RTI Integration Designer programming software.
Included in the box:

U3, charging dock, cradle, mounting holster (2), Lithium-ion battery (Installed) (1), International power supply (5V, 1A) (1), Size 10 mounting screws (4)

Important Note: The U3 requires the RTI ZB-Pro Zigbee Programming Tool to download system file and firmware updates.

Power:

3.6 VDC, 900 mAh Lithium-Ion Battery Pack

Radio Frequency Control Range:

Up to 100 feet (30.5 meters)

(with optional System Interfaces/Processors

Radio Frequency Carrier:

802.15.4 @ 2.4GHz (Zigbee® Wireless Networking), 433MHz

Display:

Electronic Paper Display

Display Size:

1.9” (48mm) diagonal

Battery Life:

2-3 Months*

Battery Charge Time:

3-4 Hours

System Memory:

256 KB Flash (non-volatile) memory

Device Capability:

Total number of devices is limited only by memory

Macro Capability:

Unlimited steps in a single macro
Total number of macros is limited only by memory

Macro capability on 16 buttons

Programming:

2.4GHz Zigbee**

Operating Temperature:

+32°F to +122°F (0°C to +50°C)

Operating Humidity:

5% to 95% Non-condensing

Dimensions (L x W x D):

7.9” (201mm) x 2.3” (58mm) x 1.1” (28mm)

Enclosure:
High-impact molded ABS plastic

Removable rubber housing with anti-fungal coating

IP Rating:

IP66: Dust tight and water repellent***

Weight:

6.8 oz. (193g) with battery pack

Warranty:

Three Years (Parts & Labor) / One year on the battery

Prop 65 Warning: WARNING: This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov