The JVA Z28 Two-Zone Security Energiser with LCD display is a top-of-the-range high power energiser ideal for installations where better zone identification is required. The Z28 can meet all requirements from longer wall-top fences to industrial and high profile installations. The energiser has an LCD display showing return voltages for each zone, battery condition and fence programming settings.

The unit is fully compatible with the optional Z-Range keypad and when wired up to a keypad is fully programmable. The energiser can be linked with other Z-Range energisers to synchronise pulses and become a multi-zone group for larger multi-zone sites. The Z28 can be controlled by a PC or up to 4 keypads, or one keypad can control up to 14 Z range energisers. The Z28 is unique in that each zone is individually controllable, allowing each to be individually operated and programmed via the keypad. Unlike many other energisers available in the market, a short on one Zone on the Z28 will have no effect on the voltage on the other Zone. The Z28 is in essence two Z14 energisers in one. This means fences powered by one Z28 can be individually armed and disarmed or put in high or low voltage mode.


  • High Voltage, Single-Zone Fence Monitor triggers alarm when live wires are tampered with
  • Earth Wire monitor triggers alarm when the earth wires are tampered with
  • LCD Voltage Out and Return Display
  • Powerful 8 Joule Energiser
  • Gate Monitor input to monitor the gate
  • 4 Joules maximum output energy per zone
  • Compliant with IEC60335-2-76
  • Built-in Lightning and Surge Protection
  • Internal Battery Backup in case of power failure
  • Up to 24-Hour Monitoring in the event of a power failure
  • Dynamic Voltage Monitoring minimising arcing and false alarms while maximising power and battery life
  • High and low power options
  • Energiser supplied with secure key switch operation
  • Diagnostic Mode
  • 3 Standard programmable relays (1 siren and 2 strobe) excellent for communication
  • Optional extra Relay Board on request total 6 relays
  • Keypad Compatible Add Z-Range Keypad
  • Pulse Synchronisation