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578, TDS Water Quality Meter tds-3 [578]

$28.00

578, TDS Water Quality Meter tds-3



* 578, TDS Water Quality Meter tds-3

* This pocketsize TDS meter measures water quality in TDS (Total Dissoloved Solids). It can be use to check the performance of the R.O. system by comparing the readings from tap-water with purified water.

* 2 x 1.5V small batteries are included.

* Comes with leather carrying case.

* Range: 0 to 9990 ppm (mg/L)

* Resolution: 1 ppm

* Accuracy: + - 2%

* Temperature compensated

* Display: LCD

* Dimension: 1.2" width x 0.75" thickness x 6" height

* Auto-OFF function: turns off meter after 10 min. idle

* Hold function: freezes measurement for convenient reading and recording.

Reviews
1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'ktinfosoft_osc_old.o.date_purchased' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

select p.products_id, p.products_image from orders_products opa, orders_products opb, orders o, products p where opa.products_id = '91' and opa.orders_id = opb.orders_id and opb.products_id != '91' and opb.products_id = p.products_id and opb.orders_id = o.orders_id and p.products_status = '1' group by p.products_id order by o.date_purchased desc limit 6

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