NON CONTACT LASER TACHOMETER We Gaby Instruments is the manufacturer And supplier of Tachometer in Coimbatore, Kerala, Tirupur, Pollachi, Erode, Salem, Chennai, Karur, Banglore, Idukki, Cochin, Trishur, Ernakulam, Trivandrum, Madurai, Tirunelveli Specifications: measuring range:2.5-99999rpm resolution:0.1rpm, at 2.5~999.9rpm;1rpm, at 1000~99, 999 rpm accuracy:±0.02%+1digtal measuring distance:50~500mm sampling time:0.5s(above120rpm) operation temperature:0 to 50oc(32 to 122of) operation humidity:10 to 90%rh storage temperature: -10 to 60oc(14 to 140of) storage humidity:10 to 75%rh dimension:145*90*35mm weight:120g(included battery) Features: mini handheld gun type design automatic and manual measurement selectable data record and recall max/min/avg value record function record time interval setup function lcd with white backlight data hold function auto and mamual power off low battery indication