Array Radar Life Detector LSJ-ARD

The LSJ-ARD is a wireless array of radar life-detector nodes. Each node senses the chest-wall breathing and micro-movement of a living person through non-metallic debris and reports distance and status to an 8-inch tablet over WiFi. Unlike a camera it needs no line of sight, and unlike a listening device it does not depend on the survivor making noise.

Yes, within the stated capability. Detection is based on chest-wall breathing and slight body movement, so an unconscious or trapped survivor does not have to move, speak or signal. Confirm performance for your specific debris type and depth with a factory demonstration — small children, deep burial and heavy moisture all have an effect.

The stated figure is at least 50 cm of solid wood block or concrete brick per node, and the node also works through brick-concrete and concrete walls, floor slabs, ruins, timber, snow and open air. These are non-metallic, low-moisture obstacles; reinforcement mesh, water-saturated concrete and metal sheeting will reduce or block detection, so treat 50 cm as a material-specific statement rather than a universal maximum.

Each node covers a 90° horizontal effective angle (±45° three-dimensional cone) with a stated positioning error of ≤0.5 m, over a selectable 5 m or 10 m range. That is accurate enough to direct an excavation team to a specific point on the pile, provided the node position is surveyed and recorded when it is laid.

Standard kits are four-in-one or eight-in-one, with custom node counts on request; all nodes connect to the single terminal by WiFi. The 680 g, 8-inch 1280 × 800 tablet shows a real-time conical radar view for each connected node, the connected-radar count, a No. / Status / Power list (detect, move, stop), target distance, and SETTING and STOP ALARM controls in an English interface.

Nodes accept removable dry batteries, rechargeable batteries or a battery pack, with a smart charger included. Continuous operation is stated at ≥5 h per battery set, with more than 7 days of cumulative field endurance across multi-power deployments. Battery level is visible on both the node OLED and the tablet. Cold weather, continuous alarm use and repeated scanning shorten runtime, so request a cold-temperature test if you deploy below −10°C.

Every node is sealed to IP65 for dust and water ingress and rated for −20°C to +60°C, and the complete kit ships in a waterproof, dustproof hard case. After immersion, impact or long transport, inspect the seals and antenna connector before the next deployment.

Each kit contains the display and control terminal, four or eight radar nodes with antennas, batteries, a smart charger, the instruction manual and a waterproof transport case. Send your deployment scenario — site size, number of search points, and whether you need 5 m or 10 m range — to receive a configuration quotation, MOQ and lead time.