Magnetic stick relay also along with the development of watt-hour meter, with the fast development, has become an important and indispensable part of watt-hour meter, the advantages of small size, load capacity is strong, the input and output isolation degree is high, low consumption, low temperature rise, it in the market share is high, and is widely used, favored by consumers.  relay is mainly used in IC card prepaid meter, centralized meter reading system. In recent years,  relays have been widely used in composite switches of reactive power compensation devices. When used in combination with SCR in composite switches, they have become the main switching devices in reactive power compensation devices to switch large current circuits. They can also be used in a variety of household appliances and automatic control devices (such as lighting control systems). 
Analysis of the advantages of  relay:
1, have high reliability, magnetic stick relay due to strict chose military level of components, the product may have improved greatly, the reliability of the contact of all electrical connection with strong connection, magnetic relay work power adopt independent power supply, the various magnetic stick relay output signals are isolated transformation, noninterference, connected to all kinds of instruments, meters of cable choose double shielded cable, as long as one end of the reliable grounding, can effectively suppress interference lines introduced.
2, is the  relay can protect a variety of starting conditions of the motor, with high action reliability, such as motor overload and phase break protection, grounding protection, can realize the central computer centralized control, improve the degree of automation of power distribution system, power distribution, control system scheduling and maintenance to reach a new level.
3, The production of  relay is based on the full current law using two stage temperature automatic compensation technology and optimization circuit structure design technology, according to the principle of center and axial symmetry in the magnetic circuit, the selection of the latest material and process technology, to ensure the product in the practical application of theoretical calculation accuracy requirements. The three-stage differential amplifier circuit is used to eliminate the error caused by the output resistance of the Hall element being greater than the internal resistance of the input of the op-amp, so that the sampling value can be reflected without loss and the design requirements can be met.
4, the production of magnetic relay is in accordance with the principle of symmetry, the passage of air gap within the closed magnetic circuit with an even number times uniform distribution, the technical parameters of the hall, a strict matching, using a unique to residual magnetism circuit, improve the ability to resist outside magnetic interference, adopting secondary automatic temperature compensation technology, make the product is not affected by the environment temperature and change the offset. The purpose of adopting fully closed anti-corrosion and dustproof measures without sealing the hall parts in the air gap is to avoid being unable to be replaced in case a certain hall part is damaged. Even in the circuit, there is no need to adjust a false value but completely lose the principle of symmetry, so that the influence caused by core deviation cannot be guaranteed.
Under the background of industrial structure adjustment, reducing the energy consumption of GDP and realizing low-carbon economic development, a new generation of energy-saving, materials-saving and high-performance  relay products will get greater development, and the market demand is booming day by day, which also provides a rare opportunity for the transformation and upgrading of the low-voltage electrical appliance industry. 
Magnetic stick relay industry with market, with the rapid development of new energy situation, increase the transformation and upgrading of starting my own business, to the extension and development of the industry provides a good opportunity, make oneself of the product to the photovoltaic inverter, new energy control and protection system, distributed energy, energy storage devices, dc switch electrical equipment in areas such as extension.
 relays will be the research and development direction of relays. Communication relays have become the largest application market. The third generation of  relays have been widely used. Solid state  relay uses micro-electronic technology. Its products are developing in the direction of intellectualization and modularization, and the market demand is rising steadily. As the second largest market for the application of  relays, the usage of single vehicle is increasing and the variety is expanding rapidly.