PS-211

PS-211 Spot Leak Payload Decoder

The PS-211 decoder turns a spot-probe uplink into wet/dry, battery millivolts, and a frame counter. Use it for drip trays and bunds — not for long rope runs.

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When to use this profile

Use this profile when one node watches a single catchment: drip tray, pump bund, or condensate pan. Place the electrodes where water collects first.

Do not reuse the PS-210 rope decoder. Spot probes have no zone index. Map the device name to the tray in the commissioning pack instead.

Join and reuse

Devices join with OTAA. Paste the shipped decoder once, then clone the device profile onto identical spot probes. A rising frame counter with a stuck wet flag usually means the tray is still bridged.

Named fields

FieldTypeNotes
wetbooleanTrue when conductive liquid bridges the electrodes
battery_mvintegerBattery millivolts for maintenance
fcntintegerFrame counter; stalls mean a silent node

Example after decode

{
  "wet": true,
  "battery_mv": 3280,
  "fcnt": 41
}

Byte offsets live in the decoder file shipped with the kit. If the first uplink disagrees with this example, trust the shipment file and the factory functional-test record.

Related pages

FAQ

Does PS-211 report a zone index?

No. Zone indexes belong to rope kits. Name the tray in the device register instead.

Can I paste the rope decoder onto PS-211?

No. Use the PS-211 profile only. Field names and byte layout differ.

Which bands are in the standard quote?

EU868 and US915. Confirm other regional plans before you lock firmware.

Where is the product page?

The PS-211 product page covers mounting and tray placement. This page documents named fields only.