The Honeywell 5881ENH is a wireless alarm receiver that can support an unlimited number of wireless zones. The 5881ENH connects to four wire keypad data line on your Honeywell security system and supports all 5800 series non-bidirectional wireless devices (bidirectional devices are compatible with use of 5800TM).
Dimensions: 4-3/8" H x 7-3/8" W
Unlimited Zones (5800-Series Receiver)
Connects to four wire keypad data lines
Supports all 5800-Series non-bidirectional wireless devices