Features
Tri Colour LED -
28 (14+14) Programmable and 13 Function Key

Price:
Dimension (L*W*H) : 85mm x 58mm x 33mm
Capacity : 2A Maximum Output
Connectivity Type : Wired
Coverage Area : Standard Device Coverage
Frequency : 5060Hz
Range : Up to 30W
Dimension (L*W*H) : Approx. 205 x 160 x 45 mm
Capacity : Single line
Connectivity Type : GSM (2G/3G compatible depending on version)
Coverage Area : Depends on GSM network signal strength; typically up to 1020 km from a cell tower
Frequency : GSM 850/900/1800/1900 MHz
Range : Network dependent
Dimension (L*W*H) : Approx. 200mm x 70mm x 50mm
Capacity : 1 line
Connectivity Type : Wired, RJ11 phone cable
Coverage Area : Single line connection
Frequency : Standard phone line frequency (300 Hz 3400 Hz)
Range : Depends on telephone wire length
Dimension (L*W*H) : 110 mm x 90 mm x 50 mm (Approx.)
Capacity : Up to 40A Line Current
Connectivity Type : Wired
Coverage Area : Single/Multiple Line Protection
Frequency : 50/60 Hz
Range : 220240V AC Lines