Romacci MH-Z19B Infrared CO2 Sensor Module for CO-2 Monitor Carbon Dioxide Gas NDIR Sensor 0-5000ppm MH Z19 CO-2 Sensor

With your metal detector, you can hunt for coins, relics, jewelry, gold, and-silver just about anywhere, including lawns, snows, mountains and etc. The detector is versatile and easy to use. Come on and try it.Features:All mental mode: let you search for all different types of metal with auto ground balance and high sensitivity. It is the fine operation mode.DISC mode: discriminates what kinds of metal is being detected.: to adjust the level of speaker and headphone.Pinpoint: to pinpoint the target. Press this button to lower the sensitivity automatically and to locate the target.Sens: sensitivity control and also used as-power switch.Waterproof searchcoil: lets you use the detector even if you need put it under shallow water.Adjustable stem lets you adjust the detector's length for comfortable use.Arm support lets you can carry and operate your detector comfortably.Specifications:Material: ABS+metalHeadphone jack: 3.5mmBattery: 2 * volt alkaline battery(not included)Search depth: 10-50mm / 0.4-2.0inDistance between two neighboring arcs: 100-150mm / 3.9-5.9inPackage size: 540 * 260 * 95mm / 21.3 * 10.2 * 3.7inPackage weight: 1450g / 3.2lbNote:1. The search coil is waterproof, but the control housing is not waterproof.Packing list:1 * Arm Rest1 * Control Box1 * Adjustable Stem with Cable1 * Search Coil1 * User Manual

: to adjust the level of speaker and headphone.Pinpoint: to pinpoint the target. Press this button to lower the sensitivity automatically and to locate the target.All mental mode: let you search for all different types of metal with auto ground balance and high sensitivity. It is the fine operation mode.DISC mode: discriminates what kinds of metal is being detected.Sens: sensitivity control and also used as-power switch.