Working temperature: -25ºC-70ºC |
Working humidity: ≤97%RH |
Communication distance: ≥80m |
Transmitter:
Dimensions: 198mm x 58mm x 49mm |
Product weight: 350g(without battery) |
Shell material: high-strength engineering plastics |
Protection level: IP66 |
Communication method: instant messaging |
Transmitting frequency: 400-470MHz |
Transmitting power: ≤10mW |
Operation form: button type |
Number of keys: ≤10 |
Working power supply: 3.0V (two dry batteries in series) |
Working electric current: ≤30mA |
Standby electric current: ≤0.5mA |
Status display: LED |
Antenna: built-in |
Receiver:
Dimensions: 162mm x157.5mm x 63mm |
Product weight: 750g |
Shell material: high-strength engineering plastics |
Protection level: IP65 |
Power supply: 48V AC or 220V AC |
Rated power: ≤6W |
Status display: combined sound and light display |
Antenna: built-in |
Output mode: ≤12 relays |
Relay capacity: 4A/250V AC |
Output interface: HAN10 or HAN16 heavy-duty connector |
A12 Description:
Exceptional Long Standby Time: Equipped with two batteries, our device can operate continuously for an impressive 30 days.
Seamless Pairing: Transmitter and receiver pair universally, eliminating the need for tedious reprogramming.
Robust Protection: Rated at IP66, our system can withstand rain and oil pollution effortlessly.
Rugged and Compact Receiver: Designed for heavy-duty use, it ensures a lightweight and compact build, simplifying installation.
Integrated Alerts: Features sound and light prompts during operations, removing the need for additional alarms.
Cost-Efficient Modular Design: Our design is modular, ensuring super cost-effectiveness for every application.



ABOUT US
OHM (Chongqing) Electronics Technology Co., Ltd.
Founded in August 2013, OHM (Chongqing) Electronics Technology Co., Ltd. is a high-tech enterprise specializing in industrial wireless remote control equipment. We integrate R&D, production, sales, and after-sales services to offer complete solutions. With our production base in Chongqing and sales headquarters and after-sales center in Shanghai, we provide impeccable consulting, support, and services in industrial wireless remote control technology.
As an industry leader, OHM is guided by the principle of 'Creating Brilliance, Only Quality' and the mission to 'Consistently deliver safe, reliable industrial wireless remote control products.' We are dedicated to developing high-quality, durable equipment that enhances efficiency, reduces labor, and offers a safer, more convenient operating environment across industries including construction, forestry, and mining.
OHM is on a mission to create the most influential industrial wireless remote control products both domestically and globally, proudly representing the national first brand in remote control technology.

Industrial Remote Control and Its Advantages
While remote controls are ubiquitous in daily life, industrial remote controls are specialized and less commonly known to the general public.
Industrial remote control systems use radio transmission for remote operation of industrial machinery. These systems consist of a handheld or waist-mounted transmitter and a receiver fixed to the machinery. Operators input commands through the transmitter's control panel, which are then digitized, encoded, and wirelessly sent to the remote receiver. The receiver decodes the signal, translating it into control instructions to manage various mechanical operations.
Industrial remote controls demand higher technical standards than civilian models, including greater accuracy, sensitivity, signal continuity, and resistance to interference, as well as robust waterproof, dustproof, high/low temperature, and acid/alkali resistance. These features enable them to perform reliably in harsh environments, a capability beyond civilian remote controls.
Industrial remote controls are vital in crane-intensive industries like metallurgy, shipbuilding, container terminals, warehousing, machinery manufacturing, chemicals, papermaking, and construction. They facilitate remote operations within ranges up to thousands of meters, unaffected by obstacles. Operators can carry a lightweight transmitter, move freely, and choose safe vantage points, eliminating risks from poor visibility, harsh environments, and miscommunication. This not only ensures safety but also significantly enhances production efficiency.
What are the ADVANTAGES of industrial remote controls?
★ Cost Savings: Replacing traditional cabs with remote control systems reduces both manufacturing and maintenance costs, becoming a standard in modern production processes.
★ Elevate Safety and Reliability: By eliminating the command link, our technology circumvents misunderstandings caused by improper commands. Operators can now manage tasks from a vantage point that offers a clear view of hoisted items, significantly reducing the risk associated with tower crane operations, particularly in adverse weather conditions. This innovation addresses the insecurity faced by operators in cabs and minimizes the chances of accidents arising from miscommunication during high-altitude tasks.
★ Enhance the Operating Environment: This advanced system allows operators to choose the safest angle for operations, steering clear of positions plagued by poor visibility and severe pollution. Moreover, it safeguards operators from the harmful effects of toxic gases, ensuring a healthier and safer working environment.
★ Optimize Human Resources: By leveraging our remote control technology, tasks such as operating, mooring, hoisting, and unloading-particularly in bridge cranes-can be managed by a single individual without the need for additional commands. This streamlines operations and maximizes workforce efficiency.
★ Boost Work Efficiency: Our solution empowers operators to make autonomous decisions, thus enhancing the accuracy and continuity of operations. Freed from the confines of upper and lower cabs and cumbersome operating lines, operators can avoid discomfort caused by extreme temperatures within the cab. This leads to improved morale and significantly heightened work efficiency.
As industrial remote controls see broader adoption across various sectors, their benefits are increasingly evident, highlighting their transformative impact on operational efficiency and safety.