Apogee PAR Meter Sensor Wand (AM-320)
This is a completely waterproof, screw-pole sensor wand and is the longest version available at 102cm.
This accessory incorporates a mounting fixture at the end of a 40 inch (102 cm) segmented fiberglass wand and is well-suited for fresh and saltwater use. The wand unscrews into three sections for easier storage and transport. All radiation sensors are compatible with the wand, which allows the user to place the sensor in hard to reach areas such as in aquarium tanks and greenhouses.
The non-waterproof, telescopic AM-310 sensor wand (84cm) is currently unavailable (5+ week lead time).