Fully Modular
The most versatile control unit in the MALÅ range and successor to the famous RAMAC/GPR CU II. One unit covers 30 MHz to 2.3 GHz — swap Optical and HF modules instead of buying a new system for each job.
One control unit for the entire MALÅ antenna library. The ProEx pairs with the rugged MALÅ XV Monitor to run single, dual or full multi-channel surveys — the most versatile GPR platform for the professional user, across utilities, concrete, geology and the environment.

The most versatile control unit in the MALÅ range and successor to the famous RAMAC/GPR CU II. One unit covers 30 MHz to 2.3 GHz — swap Optical and HF modules instead of buying a new system for each job.
Collect simultaneously from two antenna pairs as standard. Add ProEx Expansion Units for up to 8 antennas, or the MIRA extension for 31 antenna pairs.
The MALÅ XV Monitor is IP65-rated with a sunlight-readable trans-reflective screen and a simple dual-function button, running a nominal 5 hours per battery.
Because the ProEx drives every MALÅ antenna, you match the antenna to the job rather than the instrument. Lower frequencies reach deeper for geology; higher frequencies give sharper detail for concrete and shallow work.
Geology, bedrock, groundwater and large-scale mapping over difficult, unprepared ground.
Utility detection and mapping, roads, environmental and general subsurface investigation.
Cross-hole and single-hole surveys for detailed profiling away from the surface.
Concrete NDT, civil engineering, rebar, shallow utilities and fine near-surface targets.
A choice of antenna module tells the ProEx how to talk to your antenna. Fit the module you need and the same control unit handles everything from a 30 MHz rough-terrain antenna to a 2.3 GHz concrete antenna.
Connects every MALÅ antenna with an optical interface — Shielded, Rough Terrain (RTA) and Borehole antennas.
Connects the MALÅ High Frequency antennas, including versions with the EM depth-encoder option, for concrete and shallow high-resolution work.
Every ProEx solution combines the control unit and XV Monitor with the antennas and module your survey needs. Start with one antenna and scale up to multi-channel arrays without changing the core system.
Fit the Optical module for Shielded, RTA and Borehole antennas, or the HF module for the high-frequency concrete antennas.
Run a single antenna, a dual pair, or a full multi-antenna array — with cross-communication between antenna pairs when needed.
Collect in real time on the XV Monitor or a laptop with distance, time or manual triggering, then process and present the data in MALÅ software.
Because the same control unit spans the full antenna range, ProEx suits teams that work across many survey types instead of buying a separate fixed-frequency instrument for each one.
| Channels | 2 hardware channels (4 data) — up to 8 antennas, 31 pairs with MIRA extension |
| Antenna range | All MALÅ antennas, 30 MHz – 2.3 GHz |
| Antenna modules | Optical and High Frequency (HF) |
| Pulse repetition freq. | 100 / 200 kHz, not interleaved |
| Samples per trace | 2048 standard, 8192 extended |
| Stacks | 1 – 32,768 with auto-stacking |
| Sampling frequency | 0.2 – >400 GHz |
| Signal stability | <70 ps |
| Acquisition modes | Distance / time / manual |
| Communication | Ethernet, 100 Mbit/s |
| Power | Li-Ion 12 V battery, 5 h nominal |
| Size / weight | 32.5 × 22.2 × 4.2 cm · 1.9 kg |
| Environmental | IP65, -20 °C to +50 °C |
| Display | Colour TFT LCD, 640 × 480, trans-reflective (sunlight-readable) |
| Antennas | Full MALÅ range, 30 MHz – 2.3 GHz |
| Communication | Ethernet, 100 Mb/s |
| Power | Li-Ion 12 V battery or external 9 – 18 V |
| Operating time | 5 h nominal (12 V battery) |
| Size / weight | 32.6 × 21.5 × 5.2 cm · 2.6 kg |
| Environmental | IP65, -20 °C to +50 °C |
| Interface | Simple dual-function button navigation |
The ProEx drives the full MALÅ antenna range through its Optical and HF modules. Pair it with the antennas, monitor and batteries your surveys need.

The MALA RTC battery kit for use with MALA Rough Terrain Cart (RTC) and latest Mini RTC, giving users the extra power for scanning.
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The MALA XV GPR Monitor is a dedicated for data acquisition, with a unique user interface designed for the MALÅ GPR systems.
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MALÅ Shielded Antenna consists of both transmitter and receiver antenna elements in a single housing suitable for wide range of MALA GPR.
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MALÅ Separable Shielded Antennas offer the ability to separate transmitter antenna from receiver antenna for special surveys.
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The MALÅ High Frequency (HF) GPR Antenna series offers the best imaging solution suitable for concrete and rebar scanner
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MALÅ Unshielded Antenna series with separate transmitter, receiver elements and electronics, for different survey techniques.
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MALÅ GPR Borehole Antenna series are a powerful tool, often used to obtain information at greater depths than is obtainable with surface GPR.
View accessoryRD-Palmer can help specify the right ProEx modules, antennas, expansion units, carts and positioning, plus training and local service support in Malaysia.
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