Leica Disto pro4a
 
    The Distro pro4a is a laser distance meter made by Leica Geosystems. The built-in RS-232 interface can be used for remote sensor data acquisition.
The serial port mode has to be set to passive in order to measure distances continuously (tracking).
| Leica Distro pro4a | |
|---|---|
| Vendor: | Leica Geosystems AG, Switzerland | 
| Type: | Laser Distance Meter | 
| Accuracy: | ±1.5 mm (typical), ±2.0 mm (max.) | 
| Resolution: | 1 mm | 
| Range: | 0.3 m to over 100 m | 
| Measurement Time: | 0.5 … 4 s (single distance), 0.16 … 1 s (tracking) | 
| Operating Temperature: | –10 … 50 °C | 
| Storage Temperature: | –40 … 70 °C | 
| Interfaces: | RS-232 | 
| Baud Rates: | 600, 1200, 2400, 4800, 9600, 19200 | 
| Serial Port Parameters: | 8N1 | 
| Power Supply: | 6 VDC (4× 1.5 V, AAA) | 
| Power Consumption: | 200 mA | 
| Sockets: | ? | 
| Connectors: | LEMO FGA.0B |