Strainrite Wire Tension Tester MKII

“Tight enough” is the most expensive phrase in fencing. Under-strain and the fence sags into a maintenance job within a season. Over-strain and you are pulling posts out of the ground or snapping wire at the crimps. Neither shows up until the damage is done.

The Strainrite Wire Tension Tester MKII gives you an actual figure. Clip it on the wire, read the scale, strain to spec — instant, accurate readings from 50kg to 340kg (110–750 lb), calibrated for 2.5mm, 3.15mm and 4.0mm wire, so it covers 12.5, 10 and 8 gauge high-tensile from the one tool. Because it reads the wire itself, it works alongside whatever strainer is already on the fence. On a long high-tensile run where every wire should come up matched, that is the difference between a fence line that looks built and one that looks guessed.

Features

Instant, Accurate Readings: An actual tension figure off the wire rather than a feel for it — no guesswork on the last wire of the day.

Three Wire Sizes: Calibrated for 2.5mm (12.5 gauge), 3.15mm (10 gauge) and 4.0mm (8 gauge) wire — one tester for the whole fence.

50–340kg Range: Covers everything from light polywire set-ups to fully strained high-tensile, on an easy-to-read scale.

Calibration-Adjustable: Can be re-zeroed in the field so the reading stays true over years of use.

Consistent Tension Across the Run: Every wire strained to the same figure, first to last — the fence sits level instead of wandering.

Prevents Wire Damage: Stops the damage that comes from pulling wire past spec: lifted posts, snapped crimps, broken wire.

Rugged, Compact Construction: Lives in the fencing bag and takes the knocks.

Specifications

Pair it with the Strainrite FX2 Contractor Chain Strainer or Standard Chain Strainer. Browse all fencing tools at Tools and Hardware.

Strain to a number, not a feeling — every wire on the run matched, first to last.