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CAUTION: This device generates a visible beam of green light that will not burn or cut. However, it is moderately hazardous and should not be viewed by the naked eye on the same axis as the beam.
Price: £9.99 from Tesco
| Retailer | Price | |
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| Tesco | £9.99 | Go to shop |
CAUTION: This device generates a visible beam of red light that will not burn or cut. However, it is moderately hazardous and should not be viewed by the naked eye on the same axis as the beam.
Alphanumeric LCDs, which is supertwist. LCD has black characters on a green/yellow background.
Alphanumeric LCDs, which is supertwist. LCD has black characters on a green/yellow background.
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