Pay in installments of $7.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
MD4030 Underground Metal Detectors Detection Instrument, MD4030Product Features: 1. Two operation modes: all metal mode, recognition mode 2. Volume Adjustment: Adjust the volume of speakers and headphones 3. Earphone interface: can be connected to the headset (not provided) to use 4. Pointer display: the pointer will swing with the discovery of metal 5. Waterproof Detector Plate: allows you to use the metal detector in shallow water. 6. Adjustable lever: adjust the length of the metal detector 7. Application:
Product Features:
1. Two operation modes: all-metal mode, recognition mode
2. Volume Adjustment: Adjust the volume of speakers and headphones
3. Earphone interface: can be connected to the headset (not provided) to use
4. Pointer display: the pointer will swing with the discovery of metal
5. Waterproof Detector Plate: allows you to use the metal detector in shallow water.
6. Adjustable lever: adjust the length of the metal detector
7. Application: searching for buried metal objects, widely used in security checks, outdoor treasure hunting, metal checking and so on.
Specification parameters:
1. Power supply: 2 x 9V (6F22)
2. Frequency: 5.0 KHz
3. Voltage: 7.2-9.6V
4. Current: static: 10mA; up to 70mA
5. Detector plate diameter: 6.5 inch
6. Measuring range: 1-30 cm
7. Expansion length: 30.7-42.1 inch
8. Sensitivity: US 25 Cent: 130mm
9. Alarm mode: audible alarm
10. Display mode: mechanical pointer mode
11. Detection of metal size: the larger the metal the deeper the detection
12. Scope of application: searching for missing metal Childrens exploration
13. Weight: about 1200 g
14. Overall size: about 55 x 23 x 12 cm
Specification:
| Package Weight |
|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 11 reviews
Sort
Product Reviews
★★★★★ 5
Wonderful and short introduction to plate tectonics for those with little background in Earth science or mathematics
Format: Paperback
Molnar does an excellent job explaining key elements of plate tectonics. His book is understandable even for those with little background in geology or geophysics. Molnar, an expert on mountain building, nicely explains how collisions of plates with continents atop cause mountain belts to form. He also questions the limitations of plate tectonics in explaining formation of such mountains. Understanding Molnar's very short book requires little mathematics. An ideal text for college science courses for non-science majors, and for those who want to understand the evolution of Earth's geological features and phenomena.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2017
★★★★★ 5
Easy to read
Format: Paperback
The book was an easy to read discussion of plate tectonics. The technical terms were easily understood and presented in an interest manner. Technically sound and entertaining is a winning combination for a science book! I wold recommend this book to anyone interested in the topic but is not a scientist in the field.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2018
★★★★★ 4
Very short and very good
Format: eTextbook
I read this book or one similar to it my senior year in high school 1970. It absolutely caught my attention as a way to explain why the continents had separated from Gondwanaland.
I really liked revisiting the theory in light of the advances made since then
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2018
★★★★★ 5
I love VSI on Kindle
Format: eTextbook
The thing is they take a long time to read because of the look up feature. It's like reading a book in the Library of Congress.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2020
★★★★★ 5
There are few who are capable of telling the story ...
Format: Paperback
There are few who are capable of telling the story of plate techtonics including critical details. Peter Molnar is one of those chosen few who can deliver such a story succinctly and precisely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2017