Solis · Wi-Fi + 4G stick · 4-pin · no SIM
Solis S1 Wi-Fi + 4G stick, 4-pin, no SIM
Specifying monitoring on a new install is easier when one stick covers both routes. The Solis S1 combines Wi-Fi and 4G cellular in a single logger with the 4-pin connection, supplied here without a SIM so you fit the card from your own contract.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
Customer Wi-Fi is the least reliable component on any job sheet: passwords change, routers move, signals fade. Putting the S1 on the spec gives the install a cellular path as well, and taking the no-SIM version means the data side runs on whatever terms you already buy airtime on. That keeps recurring costs under your control rather than baked into the hardware. Trade terms are simple here: the ex-VAT price shown, UK stock, and the same unit price at any order size.
Specification
| Brand | Solis |
|---|---|
| Part number | SOL-S1-W4G-ST-S5-4P |
| Phase | Single-phase |
| Condition | New |
| Category | Parts & accessories · Web Interfaces |
| Delivery method | Parcel courier |
What it pairs with
The 4-pin S1 belongs with the Solis inverter families in this catalogue, such as the S6 Mini range and the S6 dual MPPT single-phase units. Match the stick's connection type to the inverter's comms port, and confirm model and firmware pairing against Solis's current list. If a site needs a SIM included instead, the with-SIM 4-pin S1 sits alongside it here.
Supplied without a SIM, so cellular use needs a card fitted; this is the 4-pin connection version, with a USB variant listed separately. It is a monitoring accessory with no bearing on system output. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-07-19