Professional accuracy within 0.1 degrees C. Readings given in 30 seconds. Memory feature enables user to monitor temperature changes. Mercury free. Hypo-allergenic gold tip. Unbreakable. 3 in 1 - suitable for oral, underarm or rectal measurements. Large LCD display for easy reading. Beeps when ready. Waterproof for easy cleaning and disinfection. Automatic shut off for longer battery life. Storage case. White plastic design. Suitable from birth with adult supervision. Size (H)12, (W)3, (D)1.5cm. Requires 1 x silver oxide battery (included). Manufacturer's 3 year guarantee.