In the era of the Internet of Everything, perception is the starting point of intelligence. Geha (Shenzhen) Technology Co., Ltd. has been deeply involved in IoT sensing technology for decades, focusing on providing high-performance, low-power, and easy-to-integrate perception layer solutions with human body sensing as the core for smart home, smart security, industrial IoT and energy-saving control.
We adhere to the parallel dual technology route of PIR and microwave radar to create a full-scenario product matrix covering from basic triggering to accurate detection. The GH718 series PIR module supports 3.7V-20V ultra-wide voltage input, with a static power consumption as low as 10μA, a 2000mAh battery that can support a battery life of more than 3 years, and a flexible and adjustable detection distance of 3-7 meters, making it an ideal trigger solution for battery-powered smart devices. The GH100/GH200 micro radar sensor adopts a 10.525GHz planar microstrip antenna design, which can penetrate non-metallic shells such as plastic, glass, and wood to achieve all-weather, anti-airflow, and anti-pet interference moving target detection, and the false alarm rate is reduced by more than 80% compared with traditional solutions, especially suitable for hidden installation of smart panels and lamps. The GH719/GH719C Doppler radar module provides the integration and innovation of military-grade detection performance and consumer-grade ease of use, with 16 levels of sensitivity adjustment, 4 trigger logics, 0.3-10 meters detection range and light control linkage function, which can work stably in the industrial temperature range of -30°C to 70°C, and has been applied to ATM protection, warehouse security and commercial lighting energy-saving systems on a large scale.
The core technical competitiveness stems from the perfect pursuit of engineering details. We realize that a single module is compatible with lithium batteries, dry battery packs and 12V/24V industrial power supplies, simplifying customer BOM design; Full-stack anti-interference algorithm is immune to sudden temperature changes, RF interference and ambient light disturbances; Plug-and-play GPIO/UART interfaces and full SDK support reduce customer prototype development cycles to 15 minutes. The product performance is benchmarked against international first-line brands, the comprehensive cost is reduced by 30%-50%, and the delivery quality is in line with the vehicle-grade TS16949 management system.
Industry solutions accurately solve the dilemma of the scene. In the field of smart home, radar penetration maintains design aesthetics, and micro-motion recognition avoids "darkness under the light"; In the field of smart security, all-weather work eliminates monitoring blind spots, and 16 levels of sensitivity are adapted to different security levels; In the field of industrial IoT, low-temperature start-up and IP65 protection support uninhabited area intrusion detection; In the field of energy-saving control, the human-sensing fusion light control logic increases the energy saving rate of commercial lighting by 35%, and the ROI cycle is shortened to 8 months.
We provide full-process technical support from prototype verification to mass production delivery, with a 48-hour response mechanism and FAE on-site service to ensure zero-risk implementation of customer projects. It has served more than 500 smart device manufacturers in total, becoming a reliable choice for domestic sensors to replace imports.
Let every induction become the starting point of intelligence.
