ADI Pro End-of-Line Resistor Pack 0E-MCR21KPK4, 2 x 1K, 4-Pin Terminal Block, 1/8W 5%, 10-Pack
Supervise every alarm zone.
A 10-pack of end-of-line resistor modules, each with two 1K resistors on a 4-pin terminal block. Add EOL supervision to alarm zones without twisting resistor leads.
A bare zone loop can't tell the panel much.
End-of-line resistors help prevent false alarms and provide zone supervision within fire and intrusion alarm systems. With a known value and 5% accuracy, the resistor lets a control panel read the zone more effectively.
Built for quick zone wiring
Each module puts the resistors and the terminals in one small black/green case.
Two 1K resistors
Every unit carries two 1K resistors, which supports common dual-resistor zone wiring.
modules per pack
Each module has two 1K resistors on a 4-pin terminal block.
4-pin terminal block
Four pins per unit make for quick, easy screw-terminal connections.
Open or closed loop
Compatible with closed loop or open loop switches.
1/8W, 5% accuracy
A standard rating for alarm circuits, with a known resistance value.
- Fast shippingUS and Canada
- 30-day returnsOn eligible items
- Quotes & sourcingJust ask
Everything you need to know.
| Brand | ADI PRO |
| Model | End-of-Line |
| Quantity | 10-pack |
| Resistance | 1K x 2 per unit |
| Rating | 1/8W, 5% |
| Connection | 4-pin terminal block |
| Case color | Black/green |
| Switch compatibility | Closed loop or open loop |
| Product type | Resistor |
| Country of origin | CN |
ADI Pro End-of-Line Resistor Pack 0E-MCR21KPK4, 2 x 1K, 4-Pin Terminal Block, 1/8W 5%, ...
The ADI Pro 0E-MCR21KPK4 is a 10-pack of end-of-line resistor modules, each with two 1K resistors on a 4-pin terminal block. They make it quick to add EOL supervision to alarm zones without twisting resistor leads.
Each unit has a black/green case and works with closed-loop or open-loop switches.
Key Features
- Two 1K resistors per unit – Supports common dual-resistor zone wiring.
- 4-pin terminal block – Quick, easy screw-terminal connections.
- Open or closed loop – Compatible with closed-loop or open-loop switches.
- 1/8 W, 5% accuracy – Standard rating for alarm circuits.
- 10-pack – Ten modules per pack.
- Limited lifetime warranty – Backed by a limited lifetime warranty.
Specifications
- Brand: ADI Pro
- Model: 0E-MCR21KPK4
- Quantity: 10-pack
- Resistance: 1K x 2 per unit
- Rating: 1/8 W, 5%
- Connection: 4-pin terminal block
- Color: black / green
Typical Uses
- EOL supervision on burglar alarm zones
- Door contacts and motion detectors
- Panel retrofits
Confirm your alarm panel's required EOL resistor value before ordering.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.
ADI PRO End-of-Line, ready to order.
- Quantity: 10-pack
- Resistance: 1K x 2 per unit
- Rating: 1/8W, 5%
- Connection: 4-pin terminal block
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