FieldLink
Reliable cellular for your smart irrigation controllers — on three networks, with more data, no throttling, and a fraction of the cost of the stock SIM.
Verizon, AT&T, and T-Mobile in one SIM. Up to 68% cheaper than the stock cellular module.
The cellular module that comes with a Hunter controller ships with a locked-down SIM: 3G only, on a single carrier, capped at 10 MB a month, and sitting at the lowest network priority — so it is the first thing throttled when towers get busy on a hot afternoon. If that one carrier has weak signal at your site, the controller is effectively offline and your cloud platform is nearly unusable.
FieldLink is a straight-swap SIM that puts your controllers on three carriers at once, over real 4G LTE, with five times the data and no peak-hour throttling — for a fraction of what the stock module costs to keep active.
Built to keep controllers online
Everything the stock SIM should have been — better coverage, more headroom, and control over what you pay for.
Three networks, not one
The SIM automatically connects to the strongest of Verizon, AT&T, and T-Mobile at each site — so a weak tower for one carrier is no longer a dead controller.
Real 4G LTE
Full LTE instead of the aging 3G the stock module is limited to. Faster syncs, fewer timeouts, and coverage that keeps working as carriers retire old 3G bands.
5x the data allowance
50 MB per controller each month versus the stock 10 MB cap — enough headroom that a controller hunting for signal will not blow through the month in a week.
No peak-hour throttling
Priority data that is not the first thing dropped when the network gets busy. Your controllers stay reachable during the hot afternoons when you actually need them.
Turn it on and off
Shut a controller off for the winter and stop paying for it. Reactivate in spring in seconds. Perfect for seasonal properties and freeze-shutdown regions.
One simple dashboard
See which controllers are online, how much data each has used, and toggle service across your whole fleet from a single account we manage for you.
The math is not close
Cost to keep a single controller connected for one year.
10 controllers on stock SIM
$1,200/yr
10 controllers on FieldLink
$390/yr
You keep
$810/yr
Figures are typical estimates; the stock module commonly runs about $120/controller/year. Your savings scale with every controller you add.
FieldLink vs. the stock SIM
Simple, honest pricing
Every plan includes the multi-carrier LTE SIM, 50 MB of monthly data, and remote on/off control. No contracts.
Seasonal
Billed only for the months a controller is active. Shut it off in the off-season and pay nothing.
- Multi-carrier LTE SIM included
- 50 MB data / month
- Turn service on/off any time
- Ideal for freeze-shutdown regions
Year-Round
Always-on connectivity, set and forget. Roughly 59% less than the stock SIM’s ~$120/year.
- Everything in Seasonal
- Always-on, no monthly toggling
- Priority LTE data
- US-based support
Fleet & Golf
Volume pricing for 10+ controllers — golf courses, sports complexes, and multi-site landscapers.
- Everything in Year-Round
- 10+ controllers
- Single consolidated dashboard
- Priority support & onboarding
Managed by Dark Space Labs on a private multi-carrier network. We handle activation, monitoring, and support — you just keep watering.
Ideal for
Common questions
Will it work with my Hunter controller?
FieldLink is a drop-in cellular SIM for Hunter controllers that use a cellular module to reach the Centralus cloud platform. If your controller runs on the stock cellular SIM today, FieldLink replaces it — same slot, better network. We confirm compatibility before you buy.
How is the coverage better?
The stock SIM is locked to a single carrier on 3G. FieldLink uses a multi-carrier LTE SIM that connects to whichever of Verizon, AT&T, or T-Mobile is strongest at that exact location. If one carrier is weak at a site, it simply uses another — instead of dropping offline.
What happens if a controller uses too much data?
Each controller includes 50 MB per month — five times the stock allowance and far more than a healthy controller needs. If a controller misbehaves and runs high, we alert you and keep it online rather than cutting service mid-season.
Can I really turn service on and off?
Yes. On the Seasonal plan you only pay for months a controller is active. Shut everything down for winter, pay nothing, and reactivate in spring in seconds. It is one of the biggest reasons FieldLink costs so much less over a year.
How much can I save?
The stock SIM typically runs about $120 per controller per year. FieldLink starts at $39–49 per controller per year. A property with 10 controllers spending $1,200/year can drop to around $390 — roughly a $810/year saving, with better coverage on top.
Stop fighting dead controllers
Tell us how many controllers you run and where they are. We will confirm coverage, ship your SIMs, and get you online — usually for less than half of what you pay now.