Event and Pulse Counters
The 7000 series solid state elapsed time indicators (hour meters) are DoD qualified to meet military specification MIL-DTL-7793 for gathering time and counting data and are “Made in the USA”.
Military Elapsed Time Indicators (ETI) and Event & Pulse Counters are designed and qualified to meet MIL-DTL-7793 standards.
These rugged, solid-state hour meters are used across military and aerospace systems to record operating hours, events, and pulse counts under extreme conditions.
All models are Made in the USA and rated for wide operating temperatures: −65 °C to +125 °C.
📘 DoD-Qualified Models (MIL-DTL-7793)
| Military Part No. | Model No. | NSN | Description | Voltage | Mounting Type |
|---|---|---|---|---|---|
| M7793/13-1 | 7001PC-005 | 6645-01-449-1808 | Solid State Elapsed Time Indicator, digital serial output | 5 VDC | PCB Mount |
| M7793/14-1 | 7001NT-028 | 6645-01-338-8505 | Solid State Elapsed Time Indicator | 28 VDC / 26 VAC | Panel Mount |
| M7793/15-1 | 7001NT-115 | TBD | Solid State Elapsed Time Indicator | 115 VAC | Panel Mount |
| M7793/16-1 | 7001NT-005 | 6645-01-499-1434 | Solid State Elapsed Time Indicator | 5 VDC | Panel Mount |
| M7793/12-1 | 1170-007 | 6645-01-338-8506 | Reader Unit for MIL-DTL-7793 ETIs | — | Cable / Field Unit |
⚙️ Product Families
1. Model 7001 Series – Elapsed Time Indicators
Records elapsed time while power is applied (up to 99,999.99 hours).
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Solid State Construction
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MIL-DTL-7793 Qualified
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Available Voltages: 5 VDC, 28 VDC/26 VAC, 115 VAC
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Panel or PCB Mount options
Common Models:
| Model | Description | Voltage | Qualification |
|---|---|---|---|
| 7001PC-005 | Digital Output, PCB Mount | 5 VDC | MIL-DTL-7793/13A |
| 7001NT-028 | Panel Mount | 28 VDC/26 VAC | MIL-DTL-7793/14A |
| 7001NTR-028 | Resettable Version of 7001NT-028 | 28 VDC/26 VAC | — |
| 7001PC-028 | PCB Mount | 28 VDC/26 VAC | MIL-DTL-7793/13A |
| 7001NT-005 | Panel Mount | 5 VDC | MIL-DTL-7793/16A |
| 7001PC-115 | PCB Mount | 115 VAC | MIL-DTL-7793/13A |
| 7001NT-115 | Panel Mount | 115 VAC | MIL-DTL-7793/15A |
2. Model 7002 Series – Event Counters
Records the number of power cycles lasting ≥5 seconds (up to 9,999,999 counts).
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Solid State Design
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Available in 28 VDC/26 VAC and 115 VAC
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Panel or PCB Mount
Models: 7002PC-028, 7002PC-115, 7002NT-115
3. Model 7003 Series – Pulse Counters
Counts input pulses up to 9,999,999 events.
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Ideal for monitoring switching, triggering, or operational pulses
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Available in 5 VDC, 28 VDC/26 VAC, and 115 VAC
Models:
| Model | Type | Voltage | Mount |
|---|---|---|---|
| 7003PC-028 | Pulse Counter | 28 VDC/26 VAC | PCB |
| 7003PC-115 | Pulse Counter | 115 VAC | PCB |
| 7003NT-028 | Pulse Counter | 28 VDC/26 VAC | Panel |
| 7003NT-115 | Pulse Counter | 115 VAC | Panel |
| 7003NT-005 | Pulse Counter | 5 VDC | Panel |
4. Reader Unit – Model 1170-007
Reader for all MIL-DTL-7793 solid-state ETIs and counters.
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MIL-DTL-7793/12A compliant
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Fast LED readout
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Rugged, field-serviceable design
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NSN: 6645-01-338-8506
✅ Key Advantages
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DoD-Qualified and MIL-DTL-7793 compliant
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Extreme temperature operation (−65 °C ~ +125 °C)
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Solid-state reliability – no moving parts
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Compact PCB or Panel Mount options
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Digital serial output for data collection
All our parts have extreme Operating Temp Range: -65 C to 125 C
Four of our ETI models are U.S. military qualified by the Department of Defense and have U.S. Military and National Stock Numbers (NSN):
Elapsed Time Indicators (ETIs)
1170-007 Reader – Military P/N: M7793/12-1
Reader for mil p/n: M7793/13-1, M7793/14-1, M7793/15-1, and M7793/16-1 solid state elapsed time indicators or event counters.
Designed to meet Mil Spec MIL-DTL-7793/12A
Faster response time and easier to read LED display
Rugged construction that is field serviceable with output cable options
NSA: 6645-01-338-8506
7001PC-005 – Military P/N: M7793/13-1
DoD Qualified to MIL-DTL-7793/13A
Provides Digital Serial Output of Hours
Voltage: 5 VDC
Solid State Elapsed Time Indication
7001NT-028
Military P/N: M7793/14-1
DoD Qualified to MIL-DTL-7793/14A
Voltage: 28VDC/26VAC
Solid State Elapsed Time Indication
Panel Mount Design
7001NTR-028
Resettable version of our DoD Qualified 7001NT-028
Voltage: 28VDC/26VAC
Solid State Elapsed Time Indication
Panel Mount Design
7001PC-028
Designed Based Upon MIL-DTL-7793/13A
Solid State Elapsed Time Indication
Voltage: 28VDC/26VAC
PCB Mount
7001NT-005
Military P/N: M7793/16-1
DoD Qualified to MIL-DTL-7793/16A
Solid State Elapsed Time Indication
Voltage 5VDC
Panel Mount Design
7001PC-115
Designed Based Upon MIL-DTL-7793/13A
Solid State Elapsed Time Indication
Voltage: 115VAC
PCB Mount