ERL10-KIT1 RS485 Lightning Alarm Package

High accuracy short range detection with modifiable output relay switches and time/status display software



• 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
• High electric field alarm warns of conditions where 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/or Status Monitor software
• Optional fiber optic connection between sensor and ERL-10 for remote mounted EFM-100 sensor


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.

Parts Included

    ERL-10 Parts:

ERL-10 Output Relay Module
A/B USB Cable
RS485 Cable (3 Wire)
120/220V AC Power Adapter
DIN Rail Clip
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

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


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