Boltek ERL10-Kit 2 Lightning Alarm Package

  • $5,049.49

Boltek ERL10-Kit 2 Lightning Alarm Package

The ERL-10 receives data from the EFM-100 Electric Field Mill short-range sensor (<20 miles/32 km) and a LD-250 long range lightning detector. It constantly monitors for lightning and activates its timed relay outputs when lightning is detected. Up to three alarms can be configured, referred to as Red, Orange, and Yellow Alert levels. The green All Clear state is entered when no lightning has been detected within the configured time period.
When the ERL-10 is first turned on, it enters Survey Mode where it looks for lightning. After several minutes without lightning (configurable but typically 10-20 minutes) the system enters the All Clear state. The green All Clear light on the ERL-10 illuminates and the All Clear relay output activates.
Coincidence Mode
With Coincidence Mode enabled, a lightning strike must be detected by both the EFM-100 and the LD-250 in order for an alarm to activate. This virtually eliminates false alarms that could be caused by persons, animals, insects, etc. near the EFM-100 sensor. Coincidence Mode is only applicable within the range of the EFM-100 (0-20miles/0-32km).
Status Monitor
The ERL-10 Status Monitor software (included) allows the system status and countdown timers to be displayed. Countdown timers clearly indicate the number of minutes until All Clear. Alarm activations are timestamped and logged to disk. Graphical log file viewing software is also included.


• 1, 2 or 3 alarms levels (Red, Red/Yellow, Red/Orange/Yellow)
• All Clear output (Green)
• Fully configurable alarm distances, durations and high electric field levels
• 20 miles / 37 km range, extendable up to 40 miles/64km
• High electric field alarm warns of conditions where first strike is more likely to occur
• Coincidence Mode virtually eliminates false alarms
• Fault output indicates status of the system
• Status Monitor software shows current alarm state and minutes:seconds until All Clear
• USB port for configuration and/or Status Monitor software
• Optional fiber optic connection between sensor and ERL-10 for remote mounted EFM-100 sensor.

Parts Included

ERL-10 Parts:
ERL-10 Output Relay Module
A/B USB Cable
RS485 Cable (3 Wire)
120/220V AC Power Adapter
2 x DIN Rail Clips with Screws
Status Monitor software for Windows
EFM-100C Parts:
EFM-100 Short Range Detector
EFA-21 Power/Data Module
6 x Attenuator Plugs
100 Foot (30m) Cat5e Power/Data Cable
A/B USB Cable
120/220V AC Power Adapter
Grounding Wire
DIN rail clip for EFA-21
EFM-100 Display software for Windows
LD-250 Parts:
LD-250 Long Range Detector
ANT-1 Lightning Antenna
ENC-1 Outdoor Antenna Enclosure
100 Foot (30m) Cat5e Antenna Cable
120/220V AC Power Adapter
DB9 Serial Cable**
NexStorm Lite Display software for Windows

Mounting Hardware included:
Inverted mounting mast*, shroud, Inverted EFM-100 cover, Junction box, Silicone grease, and a Pole Mount Bracket or Tripod
Optional fiber optic package includes fiber optic cable, EFA-20 with USB cable, and EFA-10 with DB9 serial cable
* Custom mounting masts available
** Optional DB9 Y-Splitter with additional DB9 cable to view Long Range Display software alongside ERL-10