Here are the technical details for the S2 Stick ZST10:

• Z-Wave Signal Frequency: 908.42 MHz
• Power: 4.75-5.25 VDC
• SDK: 6.81.02
• Range: Up to 130 feet line of sight indoors (up to 500 feet in open space)
• Installation and Use: Indoor Only
• Operating Temperature: 14-104° F (-10-40° C)
• Dimensions: 3.5" x 1" x 0.4"
• Weight: 2 oz

Questions? Just ask!