Search found 68 matches

by searcher
Thu May 23, 2024 3:46 pm
Forum: Buy, Sell or Trade
Topic: Sick of MEMS and gyro ad spam
Replies: 1
Views: 831

Sick of MEMS and gyro ad spam

I'm really tired of the onslaught of spam advertising for these Mems sensors and fiber optic gyros.
by searcher
Wed Jul 26, 2023 4:40 pm
Forum: Near Surface Geophysics
Topic: Groundwater search in North-Africa, which technique?
Replies: 11
Views: 12685

Re: Groundwater search in North-Africa, which technique?

Considering your soil types, Ryan may be exactly right about using EM as a screening technique. But, I know of many NGO's using basic resistivity measurements for successful water well locating in Africa and Central and South America. It can be labor-intensive at the basic level, but as a proven tec...
by searcher
Tue Mar 28, 2023 5:57 pm
Forum: Near Surface Geophysics
Topic: Where can I find SeisOpt software?
Replies: 1
Views: 4432

Re: Where can I find SeisOpt software?

I don't think Seisopt is being supported anymore but I believe the original authors are working on a new version of the microtremor product (REMI) called VsSurf. You can find info at www.terean.com
by searcher
Mon Sep 12, 2022 12:18 pm
Forum: Buy, Sell or Trade
Topic: Geonics EM38 MK1 for sale
Replies: 1
Views: 1544

Geonics EM38 MK1 for sale

For sale: A beautiful, never-used and recently updated and calibrated Geonics EM38 MK1 complete with shipping case, logging software and cable. US$8,500.00 https://www.exiusa.com/item/electromagn ... 8-FOR-SALE
https://www.exiusa.com/item/electromagn ... LE#gallery
by searcher
Mon Jun 27, 2022 11:02 am
Forum: Near Surface Geophysics
Topic: Carbomer-based gel to improve contact resistance in Electrical Resistivity Tomography (ERT)
Replies: 7
Views: 7588

Re: Carbomer-based gel to improve contact resistance in Electrical Resistivity Tomography (ERT)

I surveyed a large portion of Craters of the Moon lava flows using bentonite mud-patties carried in baggies. I would pick them up after use and carry them to the next location; sometimes adding a little more water. In addition, you can consider using 1" or 2" copper braid as an electrode i...
by searcher
Tue Jan 04, 2022 4:11 pm
Forum: Near Surface Geophysics
Topic: best magnetometer now!
Replies: 4
Views: 4281

Re: best magnetometer now!

For your kinds of applications, you might consider the Foerster Ferex we have for sale at EXI: https://www.exiusa.com/item/magnetomete ... 2-for-sale
by searcher
Wed Nov 24, 2021 2:20 pm
Forum: Buy, Sell or Trade
Topic: Geonics EM38 MK1 for sale
Replies: 1
Views: 2307

Re: Geonics EM38 MK1 for sale

This unit has been sold.
by searcher
Wed Nov 17, 2021 4:21 pm
Forum: Buy, Sell or Trade
Topic: Foerster Ferex 4.032 Fluxgate magnetometer for sale
Replies: 0
Views: 1632

Foerster Ferex 4.032 Fluxgate magnetometer for sale

We are moving to the newer Foerster Ferex model fluxgate gradiometer in our rental pool and selling the older model 4.032. This is an excellent magnetometer - capable of most kinds of applications. The engineering is superior and the units are very robust. $9,750. https://www.exiusa.com/item/magneto...
by searcher
Wed Nov 17, 2021 4:16 pm
Forum: Buy, Sell or Trade
Topic: Geonics EM38 MK1 for sale
Replies: 1
Views: 2307

Geonics EM38 MK1 for sale

I have a Geonics EM38 with digital output for sale - $6,000. https://www.exiusa.com/item/electromagn ... 8-FOR-SALE
by searcher
Mon Nov 08, 2021 12:16 pm
Forum: Buy, Sell or Trade
Topic: Seeking: GSSI 200mhz, Geonics EM61-MK2
Replies: 1
Views: 2248

Re: Seeking: GSSI 200mhz, Geonics EM61-MK2

We may be able to help you with the EM61, depending on your needs for configuration. Please contact me via private message and we can discuss.
by searcher
Tue Jun 08, 2021 5:23 pm
Forum: Buy, Sell or Trade
Topic: Selling GSSI StructureScan Mini XT
Replies: 0
Views: 2365

Selling GSSI StructureScan Mini XT

We are shifting inventory and have a used, 2019 GSSI StructureScan Mini XT for sale with its accessories. The unit is cosmetically clean and works like a champ. $12,000 Photos and specs at https://www.exiusa.com/item/radar/struc ... t-for-sale
by searcher
Wed Apr 21, 2021 4:20 pm
Forum: Buy, Sell or Trade
Topic: Complete GSSI SIR-4000 GPR System for Sale
Replies: 5
Views: 9789

Re: Complete GSSI SIR-4000 GPR System for Sale

It would help to know the age of the various components.
by searcher
Thu Mar 04, 2021 6:58 pm
Forum: Buy, Sell or Trade
Topic: Looking for Gamma and Resistivity probe with winch
Replies: 7
Views: 8425

Re: Looking for Gamma and Resistivity probe with winch

The Environmental and Engineering Geophysical Society Foundation will hold an eBay auction beginning next week with a number of geophysical instruments and accessories for sale. Included in that list is a like-new Mt. Sopris PGA2 gamma probe. The listing should be open by Monday afternoon.
by searcher
Mon Feb 01, 2021 2:09 pm
Forum: Buy, Sell or Trade
Topic: EM-38
Replies: 1
Views: 2550

Re: EM-38

Exploration Instruments in the USA has a used digital EM38 which we can sell to you. Contact us at info@exiusa.com.
by searcher
Wed Apr 10, 2019 3:27 pm
Forum: Buy, Sell or Trade
Topic: GEONICS PROTEM FOR SALE
Replies: 2
Views: 5093

Re: PROTEM FOR SALE

Ross,
Please get in touch with me via my office and we'll talk.
Dennis Mills
Exploration Instruments
by searcher
Wed Jul 25, 2018 4:23 pm
Forum: General Geophysics and Geoscience
Topic: Gravity processing software
Replies: 1
Views: 3396

Gravity processing software

We have more new clients interested in collecting gravity data over karst features, but there is a dearth of commercial software available to do processing of the data; not just modeling. It can certainly be done with spreadsheets, but I'd like to know if anyone is aware of a commercial software for...
by searcher
Tue Apr 10, 2018 12:33 pm
Forum: Buy, Sell or Trade
Topic: Searching for surveywheel/odometer for GSSI SIR-3000
Replies: 4
Views: 4612

Re: Searching for surveywheel/odometer for GSSI SIR-3000

Exploration Instruments builds a survey wheel for this system and can sell one to you either new or used: http://www.expins.com/item/12-gpr-survey-wheel
by searcher
Tue Apr 10, 2018 12:30 pm
Forum: Buy, Sell or Trade
Topic: GSSI Structurescan Minis
Replies: 1
Views: 2765

Re: GSSI Structurescan Minis

Exploration Instruments has a 2015 StructureScan MiniHR (2600 mHz) for sale. Contact info@expins.com for information.
by searcher
Mon Nov 27, 2017 11:19 am
Forum: Near Surface Geophysics
Topic: Borehole Sparker Use in Landfill areas
Replies: 0
Views: 2384

Borehole Sparker Use in Landfill areas

A client has inquired about the use of a borehole sparker in the vicinity of a landfill where there may be associated gases. The source would be in a water-filled PVC casing, of course, but has anyone had a bad experience with anything like this?

Searcher
by searcher
Wed Oct 25, 2017 5:40 pm
Forum: Buy, Sell or Trade
Topic: Equipment for sale
Replies: 0
Views: 2792

Equipment for sale

Exploration Instruments has new listings for used equipment being sold. Most of the used equipment is from the current rental pool, but we are also finding older gear - such as WADI VLF parts - that are also listed. This list includes ground penetrating radar units and systems, Time domain EM system...
by searcher
Tue Aug 29, 2017 3:37 pm
Forum: Buy, Sell or Trade
Topic: Geophysical Equipment for sale
Replies: 0
Views: 3086

Geophysical Equipment for sale

Exploration Instruments has placed a number of used instruments up for sale on the website: www.expins.com/for-sale Geonics EM-47 TDEM System for sale $45,880.00 In Stock GSSI EMP-400 Profiler for Sale $9,700.00 In Stock Wadi Parts $ various In Stock GSSI 400 mHz UtilityScan GPR System $13,750.00 In...
by searcher
Tue Aug 08, 2017 1:11 pm
Forum: Buy, Sell or Trade
Topic: GSSI 400 mHz UtilityScan GPR System for sale
Replies: 0
Views: 2703

GSSI 400 mHz UtilityScan GPR System for sale

Exploration Instruments, a geophysical instrument rental company with offices in Austin, Texas and Harrisburg, PA is offering a 2014 GSSI SIR3000 UtilityScan system for sale - $13, 750.00. http://www.expins.com/for-sale
by searcher
Thu Jun 01, 2017 4:26 pm
Forum: Buy, Sell or Trade
Topic: I buy Antenna GSSI 80, 100, 200, 270 , 300 or 400 Mhz
Replies: 3
Views: 4666

Re: I buy Antenna GSSI 80, 100, 200, 270 , 300 or 400 Mhz

Hi Marcos,

Exploration Instruments in Austin, Texas (www.expins.com) is a geophysical equipment rental company and sells instruments from the rental inventory all the time. I will contact you privately to give you prices on all of this equipment.
by searcher
Mon Apr 25, 2016 6:38 pm
Forum: General Geophysics and Geoscience
Topic: USED INEXPENSIVE resistivity meter
Replies: 2
Views: 3270

Re: USED INEXPENSIVE resistivity meter

Your best bet for the money will be the Ultra Minires built by L&R Instruments: http://www.landrinstruments.com/
by searcher
Mon Apr 25, 2016 6:36 pm
Forum: Near Surface Geophysics
Topic: Terrain Conductivity Meter
Replies: 2
Views: 3610

Re: Terrain Conductivity Meter

I think you have a misconception as to what's involved. These instruments seem deceptively simple, but they're not if you want to build one that is at least as good as those in the marketplace today. Achieving stability is much harder than it looks. I've known a number of really smart people who hav...