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| WATER LEVEL INDICATOR/ SOUNDER
(SI-SI-7038) |
| The water level sounder shall consists of a cable reel of not less than 3o meters 40 meters, 60 meters, 90 meters and 150 meter Long and shall comprise of two insulated wire bared at the contact and which passes through a weighed probe of any suitable material. The water level indicator unit shall have the complete cable reel carrying case, battery operated indicator unit, a spool with slip rings and bushes connecting the free ends of the insulated wire to the indicator. The reading shall be taken to the accuracy of 5 mm by measuring tape. |
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