Hach Sigma 900 MAX Pump / Controller


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Estimated delivery time 3 business days


Product Overview

For parts or repair, no power up

We opened the unit and found the battery holder broken (see photos).

We were unable to power up with our 12V supply.

The marks on the screen/display do not appear to penetrate the protective cover.

Being sold as a Parts or Repair unit, AS-IS, no returns due to no being able to power.

We are offering free shipping to the 48 contiguous states in the USA.

MPN: Sigma 900 Max

Item was as described, and very fast delivery!

5 stars across the board for every seller rating category, and I would buy from this seller again. And per my request, the capacitors were also very well packed for safe delivery.

Bruce B.

Obtainium have been a very helpful seller to me.

In recent times I have had a few items go astray enroute to my address in Australia. This seller was most helpful & encouraging, regarding the onward tracking & eventual safe delivery of this item. This item's arrival in good condition was a joy to me as, it was a rare part that fitted my military comms. Well done seller. I would gladly recommend this seller to all potential buyers.

Jean-Pierre H.

Super Duper Fast Shipping.

Item As Described. Packaged Nicely, What A Seller.

Wayne L.


The instrument was well packed. It is in extremely good condition. It passed all preliminary tests.

Raymond W.

Item looks better than described, looks brand new and works great.

My old buffer was 50 years old and I sent it to buffer heaven, thanks.

Mike H.

Just what the doctor ordered.

Good supply and price. Thxs

Ralph M.