1-on-3 card type anti-lost alarm
Size:
TX: 40 x 30 x 8mm
RX: 77 x 50 x 7mm
Battery requirement:
TX: CR2032 x 1 piece
RX: CR2032 x 2 pieces
Frequency: 315/433MHz
Effective range: 3 to 7m
Code: 256 units
Different color LED on the RX indicate different TX