Backlit 4 digit Liquid Crystal Display
Display visible in all light conditions - sunlight to complete darkness
Custom moulded case in compact efficient design
Front-facing low-distortion Mylar loudspeaker
Specially contoured microphone housing for enhanced high frequency sensitivity
Uses 4 x AAA alkaline, NiCd, or NiMH rechargeable cells
Low power design gives very long battery life
Conveniently placed output sockets on the bottom edge of the case
Constant level recorder output socket
Headphone socket automatically mutes loudspeaker
Built-in bright LED torch
Edgewise volume and frequency controls give easy operation with one hand
Wrist strap for added security and convenience when taking notes <

Highly linear heterodyne oscillator for easy frequency setting
Multi-stage active filters for stable loudspeaker operation over the whole frequency range
Fixed level recorder output socket - before the volume control - simplifies recording
Headphone socket suitable for any stereo headphones from 8 ohms upwards
Short circuit proof headphone output
Wide range equalised microphone - sensitive across the whole frequency range
Low noise circuit techniques optimised for wide bandwidth with minimum noise