Alchemy SIM

Multi-network SIMs, and how pooling works

Base carries 1GB, Lite carries 100MB, and they pool separately so a large fleet of sensors never draws down the sites doing real work.

Request a quoteHow it works

How the pools work

Every Base SIM contributes its monthly allowance to the Base pool. Every Lite SIM contributes to the Lite pool. Any SIM draws from its own pool, so a quiet tower funds a busy one and you never forecast usage site by site.

The two pools are independent. Base allowance cannot be consumed by Lite devices, and Lite allowance cannot be consumed by Base devices. Each pool resets at the start of its billing cycle.

Worked example. An estate of 200 Alchemy Base and 300 Alchemy Lite, with a 500GB bundle nominated to the Base pool.

Base pool: 200GB from the SIMs plus the 500GB bundle, so 700GB shared across the 200 Base sites.
Lite pool: 30GB from the SIMs, so 30GB shared across the 300 Lite sites.

A bundle tops one pool. It is nominated at order and is not split between the two.
Sizing the Lite pool matters. A Lite pool is small by design. 300 Lite SIMs is a 30GB pool, so a single misbehaving device can draw it down. If a pool runs dry the estate keeps working and the additional usage is billed in arrears. Carrying the right bundle is always cheaper than paying for data outside one, and we will tell you when your usage says a bundle should move up a size.

Volume bands

The band is set by the number of SIMs active on the estate at each SIM's renewal date, counted separately for Base and Lite.

SIMs on the estateWhat happens to your rate
1 to 99entry rate
100 or morefalls
250 or morefalls again
500 or morefalls again
1000 or morelowest band

Per SIM, per month, true 30 day cycles. A new SIM is created at the current band rate straight away. Existing SIMs move to the new rate at their own next renewal, so an estate transitions over up to 30 days. Where two rates appear for one product on a single invoice, we always include a line explaining the band change.

We quote per estate. We do not publish a price list. What an estate costs depends on how many sites you have, what the kit does at each one, and whether you need private addressing. Tell us those three things and we will come back with a written quote, in writing, with the workings shown. All prices exclude VAT.

Second multi-network SIM

Multi-network removes single carrier risk at the tower. It does not remove single provider risk in the core. A second SIM sits on a different MVNO core to your primary, so a fault at one provider does not take the site offline.

We would normally recommend it on your critical sites first rather than across the whole estate.

What the second SIM buys

The second connection, not more data. It carries no allowance of its own and draws on the same pool as your primary. Adding second SIMs does not grow the pool and does not change what you spend on data.

It is the cheapest line on our rate card, and on a critical site it is the difference between a site being down and a site being fine.

Talk to our engineering team

Tell us the estate size and what the sites do. We will model it against the pools and come back with a written quote.

Request a quote