Total inaccuracies (non linearity, dead band, gear mesh) are less than 0.5%. The 12 input sensitivities, plus attenuator, allow you to set full scale ranges anywhere from 1 mV to 20 V. The 12 chart speeds are crystal controlled for optimum accuracy. The 2-pen recorders have an internal CAL voltage that not only allows you to check full scale calibration, but also accurately set special, custom ranges. All models have override event markers and due to the lightweight and small size, can be mounted on walls, stands, etc. Warranty: 2 years.

Specifications:
Full-scale span: 1, 2, 5, 10, 20, 50 mV and 0.1, 0.2, 0.5, 1, 2, 5 V + attenuator.
Chart speeds: 1, 2, 5, 10, 20, 30, cm/min. and 1, 2, 5, 10, 20, 30 cm/hr.
Full scale response: Less than 0.5 sec.
Power required: 12 VAC/500 mA or 12 to 15 VDC/300 mA (wall transformer supplied)
Pen type: Disposable fibre tip
Paper length: 50 feet/15 meters