HIOKI FT3425 Lux Meter | JIS C 1609-1 general class AA, 0.00–200,000 lx, built-in Bluetooth, timer hold, suitable for LED lighting

HIOKI FT3425 Lux Meter: JIS Class AA, Built-in Bluetooth

Overview

The FT3425 complies with JIS C 1609-1:2006 general class AA and DIN 5032-7:1985 class B and is suitable for LED／organic EL lighting, for illuminance measurement in workplaces, offices and lighting projects. The FT3425 has built-in Bluetooth; the FT3424 in the same series has the same specifications without Bluetooth and transfers data via USB.

Key Specifications

• Measuring range: Five ranges 20／200／2000／20000／200000 lx, 0.00–200,000 lx; 0.01 lx resolution on the 20 lx range.
• Linearity: ±2% rdg. (×1.5 for displayed values over 3000 lx); accuracy guaranteed for 2 years.
• Timer hold: 5／10／15／20／30／45／60 s, to avoid shadows cast by the operator; normal hold and 99-record memory also provided.
• Built-in Bluetooth: Bluetooth 4.0 LE, for logging and report creation with the GENNECT Cross App.
• Power and weight: LR6 ×2, approx. 300 h continuous use (approx. 80 h with Bluetooth on); approx. 320 g, 78 × 170 × 39 mm.

Applications

• Illuminance checks of factory workplaces and emergency lighting.
• Before-and-after measurement of lighting improvements in offices and schools.

Specifications per the HIOKI product page (retrieved 2026-10-20).