Buying Guide for the Best Cheap Metal Detectors
Choosing the right metal detector can be a fun and rewarding experience, especially if you're new to the hobby. Metal detectors come in various types and with different features, so it's important to understand what you need before making a purchase. Here are some key specifications to consider when selecting a metal detector, along with explanations to help you make an informed decision.Operating FrequencyThe operating frequency of a metal detector refers to the number of times the signal is transmitted and received per second. This is important because different frequencies are better suited for detecting different types of metals. Lower frequencies (1-4 kHz) are better for detecting larger, more conductive metals like silver, while higher frequencies (above 15 kHz) are better for smaller, less conductive metals like gold. If you're a beginner, a mid-range frequency (5-15 kHz) is a good starting point as it offers a balance between depth and sensitivity.
DiscriminationDiscrimination is the metal detector's ability to distinguish between different types of metals. This feature is important because it helps you avoid digging up unwanted items like nails or bottle caps. Metal detectors with good discrimination settings allow you to filter out junk and focus on valuable targets. Look for a detector with adjustable discrimination settings so you can fine-tune it based on the type of treasure you're hunting.
Ground BalanceGround balance is a feature that helps the metal detector ignore mineralization in the soil, which can cause false signals. This is important because different soils have varying levels of mineral content, which can affect the detector's performance. There are three types of ground balance: preset, manual, and automatic. Preset ground balance is fixed and suitable for beginners, while manual ground balance allows for more control and is better for experienced users. Automatic ground balance adjusts itself and is convenient for all users.
Coil Size and TypeThe coil is the part of the metal detector that sends and receives signals. Coil size and type can affect the detector's performance. Larger coils (over 10 inches) cover more ground and detect deeper targets, but they can be less sensitive to small objects. Smaller coils (under 8 inches) are more sensitive to small objects and are better for detecting in trashy areas. There are also different types of coils, such as concentric and double-D. Concentric coils are good for general use, while double-D coils offer better ground coverage and depth.
SensitivitySensitivity refers to the metal detector's ability to detect small or deep objects. Higher sensitivity settings allow the detector to pick up smaller or deeper targets, but they can also cause more false signals. Lower sensitivity settings reduce false signals but may miss smaller or deeper targets. It's important to choose a detector with adjustable sensitivity so you can find the right balance based on the area you're searching and the type of targets you're looking for.
Weight and ErgonomicsThe weight and ergonomics of a metal detector are important for comfort, especially if you plan to use it for extended periods. Lighter detectors are easier to handle and reduce fatigue, while well-designed grips and adjustable shafts can make the detector more comfortable to use. Consider your physical condition and how long you plan to use the detector when choosing a model. A comfortable and lightweight detector will make your treasure hunting experience more enjoyable.