FRG 40/70 is a digital electronic instrument designed to measure alternate current frequency.

• Housing: ABS plastic, 4 DIN modules, front panel 70x85 mm
• Depth: 61 mm
• Mounting: on DIN rail (omega 3)
• Connections: on terminal block for wires = 4 mm2
• Relative Humidity: from 10% to 90% without condensing
• Measurement range: from 30 to 999 Hz
• Input voltage: from 50 to 600 Vac
• Accuracy: ±2% full scale ±1 digit at 20 °C
• Resolution: 1/1000 on full scale
• Self consumption: 1 VA max
• Power supply: 115 Vac ±10% or 230 Vac ±10%, 50/60 Hz