Casella CEL CEL-296 - Manual (Page 62)

External power,
3.5 to 8 V DC via pins 1 and 2 of auxiliary socket, at 250 mA
maximum. Typically 115 mA at 6 V.
Batteries:
4 x IEC LR6 Alkaline Manganese type. Battery life up to 12 h
with continuous use.
Dimensions: (Excluding controls and feet)
147 x 80 x39 mm (5.8 x 3.15 x 1.55 in).
Weight:
775 g (1.7lb).
Page 62 CEL-296/3 Operator Handbook CEL Instruments Ltd