Spare AC power adapter for GL220, GL240, GL820, GL840, and GL900 products.
Cable, 4 x Logic inputs & 4 x alarm outputs, 2 meters.
2 meter DC power cable with bare ends for direct connection to DC power source.
Humidity Sensor, 0 to 100% RH.
20-channel terminal base for input terminals B-564 and B-565.
50cm or 2-meter cables for connecting the B-566 extension terminal base on the GL840 datalogger .
Allows for Wireless Communications on Graphtec GL240 and GL840 Data Loggers.
Battery pack, maximum 6 hours.
Pelican Polypropylene case with foam inserts cut to fit and protect your GL840 data logger.