Kahles HELIA 42 RF

Kahles 42 HELIA RF Rangefinder

Easy and reliable targeting up to 1,500 m for common hunting targets. Intuitive simple menu navigation. Patented EAC function (Enhanced Angle Compensation) for angle correction. Long-range (LR) function for easily detecting targets up to 4,500 m. Premium-quality OLED display with five manual brightness settings and options for meter or yards. Scan Mode, temperature, and air pressure display. Extra long battery lifetime ~ 4,000 measurements. Battery: CR2 Lithium (3V DC), battery life approximately 4000 measurements.


Technical details
Magnification 8x42 = 8x / 10x42 = 10x
Objective lens diameter (mm) 42
Eye relief (mm) 8x42 = 18mm / 10x42 = 16mm
Exit pupil diameter (mm) 8x42 = 5.3mm / 10x42 = 4.2mm
Pupil distance (mm) 58-73mm
Twilight factor (ISO 14132-1): 8x42 = 18.3 / 10x42 = 20.5
Field of view (m/1,000m) 8x42 = 122 / 10x42 = 107
Field of view (°) 8x42 = 7.0 / 10x42 = 6.1
Field of view apparent (°) 56
Near focus (m) 5
Diopter compensation (dpt) ± 4
Measure range - standard (m) 5 - 1,500
Measure range - LR (m) easy to measure targets up to 4,500
Range-finding accuracy (m) +/- 1 up to 100
+/- 2 up to 1,000
+/- 0.5% over 1,000
Display type OLED
Brightness levels 5
Measurement duration 1 s
Display Auto-off 5 s
Adjustment position twist-in eye cups 4
Waterproof (nitrogen filling) ?
Height x Width x Depth approximately (mm) 145 x 132 x 73
Weight (g) 900
m/yds display ?
Laser category 1M
Single measurement ?
Scan measurement ?
Angle correction EAC-Function
LR measurement ?
Temperature measurement ?
Air pressure measurement ?
Battery type CR2 Lithium (3V DC)
Battery lifetime ~ 4,000 range cycles
Warranty 10 years
Electronics warranty 2 years
Operating temperature mechanical (°C) -10 / +55
Operating temperature electronic (°C) -10 / +55
Accessories (included) Ocular and objective cover,
Carrying strap with quick-release fastener