WH-120 PRO 4G GSM
4G LTE Mobile Gate Access Controller
WH-120 PRO 4G GSM is a mobile-network access controller that allows authorised users to operate a compatible automatic gate, garage door, parking barrier, shutter or access-control input by calling the SIM card installed in the unit.
The controller uses caller-ID authorisation and a relay output, so normal radio-remote distance limits do not apply. Depending on the exact WH-120 PRO hardware version, published user capacity can be up to 200 or 1200 authorised numbers.
It supports a Nano SIM, wired switch input and an external SMA antenna. The unit is intended to connect to a compatible low-voltage command input on an automation control board; it does not replace the gate motor control board itself.
WH-120 PRO 4G GSM Features
- 4G LTE / GSM mobile access control
- Authorised caller-ID operation
- Nano SIM support
- No conventional radio-remote distance limitation
- Up to 200 or 1200 authorised users depending on version
- Relay output for compatible automation inputs
- Wired switch input
- 50Ω SMA antenna connection
- Suitable for gates, barriers, garage doors and shutters
WH-120 PRO 4G GSM Technical Specifications
- Model: WH-120 PRO 4G
- Power Supply: AC 9–30V or DC 9–36V / 1A
- SIM: Nano SIM
- Relay Rating: 3A / 240V AC
- Antenna: 50Ω SMA
- Operating Temperature: -10°C to +60°C
- Storage Temperature: -20°C to +60°C
- Relative Humidity: 10–90% RH, Non-Condensing
- Dimensions: Approx. 96.5 × 50 × 31.5 mm
- User Capacity: Version Dependent, Up to 200 / 1200
Compatible Systems
- Automatic gate control boards with compatible command input
- Parking barriers
- Garage door openers
- Rolling shutters
- Access-control doors
Applications
- Villa gate mobile access
- Residential compounds
- Commercial entrances
- Warehouse and factory gates
- Parking access control
Why Choose WH-120 PRO 4G GSM?
It provides phone-based access without requiring every user to carry a handheld gate remote.
Caller-ID authorisation is useful for properties with multiple approved users, while the relay interface allows integration with many compatible automation systems.
Frequently Asked Questions
Does WH-120 PRO require a SIM card?
Yes. It uses a Nano SIM and a compatible mobile network.
Can it open a gate from far away?
Yes. Commands use the mobile network rather than the short-range radio link of a conventional gate remote.
How many users can be authorised?
Published WH-120 PRO versions vary; common versions support up to 200 or 1200 authorised numbers.
Can it connect to any gate motor?
It can work with many systems that provide a compatible command input, but the control-board wiring must be checked first.
Does it replace the gate control board?
No. It normally provides a relay command to the existing automation controller.


