| Description | Carbon dioxide sensor, CO2 concentration (max. 9999 ppm) | GL840 Extension cable (2 m) | Wireless Data logger with Voltage/Temp. input module, 4.9MB on-board memory, micro-SD memory slot, micro-B USB PC interface, LCD display | Data logger with GS-4VT Voltage/Temp. input module, 4.9MB on-board memory, micro-SD memory slot, micro-B USB PC interface, LCD display | Wireless Data logger with Temp./Humidity sensor, 4.9MB memory, micro-SD memory slot, micro-B USB PC interface, LCD display | GL100 main unit, WLAN model, Requires sensor or input terminal |
| Additional information |
| Weight |
0.5 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
2 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
2 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
2 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
