| Description | GL840 Extension cable (2 m) | Battery pack for GL240, GL820, GL840 | Cable: 4 x Logic inputs and 4 x alarm outputs, 2 meters. For use with the Graphtec GL series data loggers for input of pulse or logic signals and for alarm outputs. | Data logger with GS-CO2 Carbon dioxide sensor, 4.9MB on-board memory, micro-SD memory slot, micro-B USB PC interface, LCD display | Shunt Resistor (1pc/pack) (soldered on lugs for terminal block use). 250 ohm shunt resistor | Wireless Data logger with Illuminance/UV sensor, 4.9MB on-board memory, micro-SD memory slot, micro-B USB PC interface, LCD display |
| Additional information |
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
1 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
0.2 lbs |
| Dimensions |
6 × 8 × 4 in |
|
| Weight |
2 lbs |
| Dimensions |
6 × 8 × 4 in |
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