• Room thermometer & hygrometer (for indoors only)
  
• Compact design (measures 2.75″ x 2.4″ x 0.6″)
• LCD display shows temp, humidity & battery status
  
• Temperature range: -4° to +158°F
  
• Accuracy: +/- 2 degrees Fahrenheit
• Relative Humidity: 1 to 99%
• Expandable (up to 4 wireless sensors)
• Operating frequency: 433 MHz
• Compatible with STRS system
• Expandable (up to 4 wireless sensors)
• Battery-operated (requires 2 AAA batteries)
• Transmission range: 300 ft
• Free-standing for tabletops, plus integrated “keyhole” for wall-mounting

Note: While the STRS can be configured to accept a maximum of four (4) sensors for automatic trigger-based control, there is no limit to the number of sensors which may be remotely monitored.