surveyors metal detector

Models vary: some feature coil-only waterproofing for shallow-water use, while others are rated for full-unit submersion (examples list operation down to about 10 m). IP68-rated coils or whole units are commonly mentioned in the listings.

Operating frequencies shown include examples such as 5.8 kHz and 7.2 kHz. Common detection modes are All‑Metal and Discrimination, plus labeled modes like Coins, Jewelry and Artifact; many units also offer notch/disc control to ignore unwanted targets.

Power arrangements vary widely across listings. Examples include single or multiple 9V batteries (1 × 9V, 2 × 9V), AA packs (e.g., 6 × AA), and rechargeable packs (e.g., 4 × 1.2V Ni‑MH). Some entries state "no battery used," while others include batteries or chargers in the package—check each product listing for the exact power configuration.

Many models use ABS plastic, sometimes combined with aluminum or other plastics. Listed weights in the results cover a wide range—from very light handheld units (~0.68 lb) to heavier kits (examples include 6.6 lb and up to about 17 lb), so weight depends on model and included accessories.

Feedback options include multiple audio volume levels and distinct tones or prompts, as well as vibration or combined sound/vibration alerts. Discrimination and notch controls are also used to help distinguish and ignore unwanted metal types.