4.6 Equipment life span
The following table is a guide to the average life expectancy of equipment commonly used in schools and managed through school libraries:
| Equipment Type |
Life in Years |
Hours of Life |
| 3 in 1 stereo system |
5 |
500-1000 |
| Amplifier |
5 |
3000-5000 |
| Audio cassette recorder |
5 |
500-1000 |
| Barcode reader |
5 |
1000-3000 |
| Calculator (electronic) |
3 |
3000-5000 |
| Camera (instant develop) |
3 |
500-1000 |
| Camera 35 mm SLR |
5 |
3000-5000 |
| Camera, 35 mm fixed lens |
5 |
3000-5000 |
| CD player - audio |
10 |
1000-3000 |
| CD-ROM player |
10 |
1000-3000 |
| Computer |
5 |
1000-3000 |
| Copier (thermal) |
5 |
1000-3000 |
| Fan (electric) |
5 |
1000-3000 |
| Laminater (heat press) |
7 |
3000-5000 |
| Listening post |
5 |
500-1000 |
| Megaphone |
5 |
500-1000 |
| Modem |
5 |
1000-3000 |
| PA system |
5 |
3000-5000 |
| Photocopier |
3 |
500-1000 |
| Photographic enlarger |
10 |
3000-5000 |
| Printer (computer) |
5 |
500-1000 |
| Projector - data |
- |
1000-3000 |
| Projector - slide filmstrip |
7 |
500-1000 |
| Projector 16 mm |
10 |
1000-3000 |
| Projector overhead |
5 |
3000-5000 |
| Radio cassette recorder |
4 |
500-1000 |
| Record player |
5 |
500-1000 |
| Refrigerator |
10 |
3000-5000 |
| Screen (daylight) |
5 |
3000-5000 |
| Stopwatch |
5 |
3000-5000 |
| Timer |
10 |
3000-5000 |
| TV monitor |
5 |
1000-3000 |
| Video camera |
3 |
1000-3000 |
| Video recorder |
5 |
1000-3000 |
| Video tapes |
10 |
500-1000 |
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