# GreenRex Waterproof Metal Detector for Adults, 5 Modes

Source: https://www.ranked10.co.uk/garden/best-metal-detectors/greenrex-metal-detector-rex-8
Ranked #7 in "Best Metal Detectors 2026: 10 Ranked, and the Coil Spec That Says 12cm": https://www.ranked10.co.uk/garden/best-metal-detectors

- Price: £119.99 (checked on Amazon UK on 2026-09-16)
- Amazon rating: 4.4 from 649 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0F939VQSY?tag=ranked10-21

GreenRex's entry at number seven in this guide is a £119.99 adults' detector with a 4.4-out-of-5 rating from 649 ratings, a coil rated IP68, five detection modes and a backlit LCD the listing says is 50% bigger than standard. The listing sells it on accessories as much as electronics: headphones, a foldable shovel, two batteries and a carrying bag are all listed as included.

The figure that does not hold together on this page is the unit count. The specification table records a unit count of 1.0 gram next to an item weight of 2.78 kg — a 2,780-fold gap between two numbers describing the same box, and one of them plainly is not the detector. Two smaller gaps sit nearby: the bullets say the shaft adjusts up to 132 cm while the table gives a height of 135 centimetres, and the title's "Waterproof" is qualified by the bullet itself with "(Note: Control box is not waterproof.)". Everything below comes from the Amazon listing as it appears, not from any testing we carried out.

## Specification

| Field | Value |
|---|---|
| Price | £119.99 |
| Rating | 4.4 out of 5, from 649 ratings |
| Search coil size | 25.4 centimetres in the spec table; the title calls it a 10'' IP68 coil |
| Item weight | 2.78 kg |
| Unit count | 1.0 gram (as listed) |
| Item dimensions | 25.4L x 25.4W x 135H centimetres |
| Maximum stated length | 132 cm in the bullets against 135 cm in the spec table |
| Waterproofing | Coil rated IP68; listing adds that the control box is not waterproof |

## Questions people ask

**How many modes does the GreenRex have?**

Five, as listed, although the bullet text is cut off after naming only All Metal and Disc.

**Is the GreenRex waterproof?**

The coil is IP68 and the listing says it works in shallow water; the same bullet adds that the control box is not waterproof.

**What comes in the box with the GreenRex?**

Premium headphones, a foldable shovel, two batteries and a carrying bag, according to the listing, which also answers "Are Batteries Required: Yes".

**How heavy is the GreenRex?**

The spec table gives an item weight of 2.78 kg and a unit count of 1.0 gram; two figures that cannot both describe the detector.

**How big is the search coil?**

The title calls it a 10'' IP68 coil and the spec table lists 25.4 centimetres — which is 10 inches, so those two agree.

**What is the GreenRex model number?**

The Model Number field reads "/" and the Manufacturer Part Number is REX-8.