EXPRESS 700C Responder

Transmission technology: RF (Optional wire backup)
Display: 3-digit LCD
Response Mechanisms:
Keypad: telephone style, 12 button (embossed and sealed)
Dial-knob: 10-point (0-10), 180 deg. (100-pt. option)
Response time: 1 second
Error detection: Invalid responses recognized and "E" is displayed
System capacity: 100 Responders
Power: 9V alkaline battery (included)
Battery conservation: Energy saving circuitry and Sleep/Off modes
Antenna: External, flexible
Dimensions: 60 x 120 x 25 (mm)
Weight: 115g