| 
- Battery powered
- End of life indicator
- 2 Year Guarantee
- 3rd party accredited by BSI
 BS EN 50291:2001
|
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| 
- Battery powered
- Memory feature
- End of life indicator
- 5 Year Guarantee
- 3rd party accredited by BSI
BS EN 50291:2001 |
|
|
| 
- Battery powered
- Memory feature
- End of life indicator
- 2 Year Guarantee
- 3rd party accredited by BSI
BS EN 50291:2001
|
|
|
|
|
|
|
