Wireless MultiLab probes do not include a WA-S wireless sensor module.
One WA-S wireless sensor module must be installed at the top of each wireless sensor, while one WA-M wireless meter module is needed per MultiLab meter. We suggest the MultiLab WA Kit if wireless sensors will be used, as it includes one WA-S wireless sensor module, one WA-M wireless meter module, one charger for WA-S modules, and one USB power supply for the WA-S charger.
Wireless sensors can only be used with the MultiLab 4010-1W, MultiLab 4010-2W, and the MultiLab 4010-3W. Wireless sensors can be used with the MultiLab 4010-1 if the latest instrument firmware has been installed - see the Software and Firmware Downloads page.
Please see the MultiLab Ordering Guide if ordering a complete system, or contact us if you have any questions.