Feature: 1. With the lacklight function, so you can use at light or dark environment, which can give you a better using experience. 2. With the bu-zzer and LED light flashing alarm prompt, which can alarm you in time. 3. Pe-ak and trace mode conversion: which can instant display record pe-ak. 4. Horizontal display function suitable for the occa-sion of reading angle requirements, you can use it in different occasions. 5. Three torques unit conversion: kg.cm, in.lb, N.m, you can choose the suitable unit for different needs. 6. Power saving design, it will automatic shutdown for 60 seconds no operating, which can save the power for a long using life. Specification: This is an utility tool for you to use in your daily life, you can connect it with the a ratchet wrench(not included), immediately become a digital display torque wrench, it is also small in size and easy to carry, so you can take it to anywhere you want to use it, come on and try it, it will not let you down. Features: With the lacklight function, so you can use at light or dark environment, which can give you a better using experience. With the bu-zzer and LED light flashing alarm prompt, which can alarm you in time. Pe-ak and trace mode conversion: which can instant display record pe-ak. Horizontal display function suitable for the occa-sion of reading angle requirements, you can use it in different occasions. Three torques unit conversion: kg.cm, in.lb, N.m, you can choose the suitable unit for different needs. Power saving design, it will automatic shutdown for 60 seconds no operating, which can save the power for a long using life. Specifications: Material: ABS Type: RM3-135AN, RM4-200AN, RM4-340AN (optional) Accuracy: ±2% Memory: 50 Resolution: 0.1 Display range: RM3-135AN: 1.35~135N.m RM4-200AN: 2~200N.m RM4-340AN: 3.4~340N.m Alarm range: RM3-135AN: 6.8~135N.m RM4-200AN: 10~200N.m RM4-340AN: 17~340N.m Accuracy guarantee range: RM3-135AN: 27~135N.m RM4-200AN: 40~200N.m RM4-340AN: 68~340N.m Drive he-ad: RM3-135AN: 3/8inch dr RM4-200AN: 1/2inch dr RM4-340AN: 1/2inch dr Model: pe-ak/trace Units: kg.cm, in.lb, N.m Power supp-ly mode: 3 * AAA battery (not incuded) Operating temperature: -10℃~60℃ Storage temperature: -20℃~60℃ Relative humidity: 15~90% Auto power off: 60s Package size: 126 * 125 * 80mm / 5.0 * 4.9 * 3.1in Package weight: 360g / 12.7ounce Packing list: 1 * Torque Meter (optional) 1 * User Manual Package List: 1 * Torque Meter (optional) 1 * User Manual