F21-E1BTaiwan Yu Ding One Machine Double Control Crane Remote Controller - Features two-way transmission and reception, with the receiver capable of being paired with an extended antenna.

The image above depicts a two-transmitter and two-receiver setup, compatible with each other.

Above is the optional extended antenna, the length of which can be customized according to on-site requirements. Available lengths include: 1.5 meters, 2 meters, 3 meters, 5 meters, 10 meters, and 20 meters.

Equipped with dual transmitters, one in use and one as a backup, they can also operate in tandem. For lifting large workpieces, with two operators working from different angles, the lifting process becomes more convenient and safer. In long-distance workshops, two operators can also stand at both ends and coordinate their operations, eliminating the fatigue of back-and-forth travel!

Transmitter (Handheld) - Dimensions: 16.4×7.5×4.6 cm, Weight: Approx. 320 g

Receiver - Dimensions: 18.5×8.5×8.5 cm, Weight: 550 g

Equipped with 8 operational keys, including 7 single-speed keys and 1 total stop key.

Control points reach 9.

Battery voltage warning device included; automatically cuts off the circuit when voltage is insufficient.

Control Distance: Up to 100 meters

Security Code: Over 4.3 billion unique combinations at the factory.

Operating Temperature: -35°C to +80°C (Battery tolerance not considered)

Protection Class: IP65

Transmitter Power Supply: DC 3V (2 AA alkaline batteries can last for 4 months)

Receiver Power Supply: AC 380V/220V selectable, or DC 12V/24V.

Output Contact Rating: 5A fully sealed relay output (using a 250V/10A AC relay, with a 5A fuse).

Suitable for single-hook, single-speed electric hoists or trolley hoists, cranes, and industrial control remote operations with 9 or fewer control points.