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Boltek ERL10-KIT1 RS485 Lightning Alarm Package


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Boltek ERL10-KIT1 RS485 Lightning Alarm Package

The ERL-10 receives data from the EFM-100 Electric Field Mill short-range sensor (<20 miles/32 km). It constantly monitors for lightning and activates its timed relay outputs when lightning is detected. Up to two alarms can be configured, referred to as Red, 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.

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 / 32 km range
  • Available High electric field alert warns of conditions when first strike is more likely to occur
  • 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 Status Monitor software
  • Optional fiber optic input / RS485 output for transmitting status messages to other equipment or to a distant Status Monitor computer

Parts Included:

ERL-10 Parts:

  • ERL-10 Output Relay Module
  • 12V DC Power Adapter
  • USB Cable
  • 3-Wire RS485 Cable
  • DIN Rail Clip
  • Rubber Feet
  • 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) Cat6 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

Mounting hardware included:
Inverted mounting mast*, shroud, Inverted EFM-100 cover, Junction box, Silicone grease, and a Pole Mount Bracket or Tripod

*Custom mounting masts available

ERL-10 Product Brochure
ERL-10 User Manual
EFM-100 Product Brochure
EFM-100 User Manual
EFM-INV-M / EFM-INV2 / EFM-INV3 Installation Instructions


ERL-10 V1.30 Software for Windows
EFM-100 V1.33 Software for Windows

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