Premier Digital Torque Adaptor 1/2"Sq Drive 40-200Nm (STW290) A digital torque adaptor that turns a standard ratchet or breaker bar into an accurate digital torque wrench, reading 40 to 200Nm (29.5 to 147.5lb.ft) to ±2% with a calibration certificate supplied. The LCD shows live torque with an LED and audible alarm at the target figure, in a 75mm body suited to engine bay work and wheel nut torquing. What it brings to the job Any ratchet becomes a torque wrench Fits between a 1/2"Sq drive ratchet or breaker bar and the socket, reading torque digitally. Warns before you overtighten The LED and audible alarm signal approaching and achieved target torque. Five units, fifty readings Reads Nm, lb.ft, lb.in, kgf.cm or kgf.m to ±2%, stores 50 readings and ships with a certificate. Runs on AAs you already have Two AAA batteries (supplied) give around 50 hours, with auto shut-off after 85 seconds. Lifetime guarantee.
