Overview
The Red Lion GEM2 counter module delivers dependable 6-digit counting in a compact panel-mount format. This unit is part of the GEMINI series—a proven line of industrial counters and rate indicators. The Red Lion GEM2 counter integrates easily into PLC systems, control panels, and automation equipment, offering programmable counting modes and straightforward setup for maintenance and systems integrators.
Key Features
- 6-Digit LED Display – 0.56″ (14.2 mm) high characters with negative sign and overflow indicators for clear visibility
- Programmable Counting Modes – Bi-directional, anti-coincidence, and quadrature sensing for diverse applications
- Multi-Voltage Input – Operates on 115/230 VAC or 11–14 VDC, 50/60 Hz
- Sensor Power Output – 12 VDC @ 100 mA auxiliary supply for external sensors
- Solid-State Outputs – 120/240 VAC or 28 VDC resistive rated at 5 A maximum
- Non-Volatile Memory – E2PROM retains programming and count value during power interruptions
- Panel-Mount Installation – NEMA 4/IP65 sealed front panel for industrial environments
Technical Specifications
- Display Type: 6-digit LED, 0.56″ high
- Input Power: 115/230 VAC or 11–14 VDC, 50/60 Hz
- Sensor Power: 12 VDC @ 100 mA
- Output Rating: 120/240 VAC / 28 VDC, 5 A resistive
- Counting Range: 0 to ±999,999
- Input Circuitry: Switch-selectable for TTL, CMOS, and switch contact signals
- Maximum Count Speed: 10 kHz
- Front Panel: NEMA 4 / IP65 (sealed face)
- Mounting: Panel mount with plug-in terminal connections
- Memory: Non-volatile E2PROM
- Operating Temperature: 0–50 °C
- Weight: 1.98 lbs
- Panel Cutout: 133 × 69 mm
Typical Applications
- Production line part counting and tracking in discrete manufacturing
- Downtime and cycle counting in automated assembly systems
- Frequency and pulse monitoring in motor/encoder applications
- Process monitoring and material flow verification
- Preset alarm outputs for production limits or maintenance intervals
- Retrofit integration with legacy PLC control cabinets
Compatibility & Replacements
Compatible With
- Standard industrial control systems and PLC architectures requiring discrete counting inputs
- TTL, CMOS, and switch-contact sensor outputs
- Auxiliary 12 VDC sensor power for proximity and photoelectric sensors
- Resistive load control circuits rated 120/240 VAC or 28 VDC
Replaces / Drop-In Replacement For
- Red Lion Controls GEMINI 1000 (single-level preset counter)
- Other Red Lion GEM-series counters with identical form factor and terminal configuration
- Legacy 6-digit panel counters requiring NM4/IP65 sealing
Works With
- Manual front-panel pushbutton programming for count mode selection and preset values
- Optional serial communications via 20 mA current loop (if supported on specific variant)
- PLC discrete input modules for remote count monitoring
- Standard industrial relay and solid-state output control circuits




















