Features and Specifications:

 800 series Z-Wave chip and S2 based; 
 SmartStart supported, scan and play;
 Long Range implemented (for US frequency only). Z-Wave rang up to 1 mile line of sight; 
 Size: 70mm x 24.5mm x 20mm;
 Power: 2 x AAA battery (5 years battery life) ;
 Working temperature: -10 ~ 50℃;
 Working humidity: Up to 90% non-condensing