Resources

Working documents for buyers

Every file below is something we use ourselves — checklists, calculators and reference sheets. The first page of each is visible on this page. You give us your work email and it downloads. No phone call.

Checklist · PDF · 12 pp

Rugged tablet procurement checklist

Every clause we've seen kill a fleet rollout, phrased as questions to put in your RFP.

Preview — page 1

01 · Ingress rating vs. actual exposure model
02 · Ports: which sealed, which loaded on connection
03 · Battery cycle count at 80% capacity retention
04 · Hot-swap behaviour under thermal throttle

12 pages · ungated preview above

Calculator · XLSX · macro-free

Portable power TCO calculator

Five-year cost model for portable power stations: cycle life, replacement chemistry, freight, and disposal.

Preview — page 1

Sheet 1 · Capacity vs. duty cycle
Sheet 2 · Cycle-life derating by chemistry
Sheet 3 · Freight & hazmat (UN3480/3481)
Sheet 4 · Replacement scheduling

6 pages · ungated preview above

Reference · PDF · 8 pp

IP, MIL-STD and drop standards cheat sheet

What each rating actually tests, what it doesn't, and which claims are commonly overstated on spec sheets.

Preview — page 1

IEC 60529 · IPX and IPXX pairings
MIL-STD-810H · methods actually run in practice
Drop: face, edge, corner — what vendors report
Ingress vs. dust class: the common failure mode

8 pages · ungated preview above

Guide · PDF · 16 pp

Field comms selection guide

Choosing between LTE, satcom, mesh radio and hybrid setups by terrain, team size, and duty cycle.

Preview — page 1

01 · Terrain × coverage decision tree
02 · Latency and jitter budgets for dispatch
03 · Cost per active radio-hour
04 · Failover architecture patterns

16 pages · ungated preview above