The newly released Sinometer MS8229 DMM is an improved and modified version of the widely praised Mastech MS8209, it combines a multimeter, a sound level meter, thermometer, luxmeter, humidity meter all in one. Also it is packed with many nice features such as temperature & humidity display, sound and light warning for the jacks and back-lit LCD Screen. Features: 1. Portable Professional Measuring instruments with large LCD digital display and Back light 2. "Single-hand operation"design for the range switch 3. Overload protection and low battery indication 4. light and sound alarm to prevent misconnection of test leads 5. 5 in 1 digital multi-tester 6. AC/DC voltage and current, resistance,frequency, duty, capacitance, as well as continuity and diode test 7. Auto range and manual range 8. Auto power off 9. Reading hold 10. Relative measurement function Specifications: DCV: 400m/4/40/400/1000V, +/- 0.7% ACV: 400m/4/40/400 +/- 0.8% 750V, +/- 1.0%, DCA: 400?/4m/40m/400m +/- 1.2% 4/10A, +/- 2.0% ACA: 400?/4m/40m/400m +/- 1.5 % 4/10A, +/- 3.0%, Resistance: 400/4K/40K/400K/4M +/- 1.2% 40M, +/- 2.0%, Capacitance: 40n/400n/4m/40m/100mF ¡À3.0%, Frequency: 10/100/1K/10K/100KHz/200KHz ¡À 2.0%, >200KHz,reference only, Temperature: -20 - 1000 degrees C +/- 3.0% (C/F selectable) RH: 20 - 95%, +/- 5.0%, Lux: 4,000/40,000 Lux, +/- 5.0%, Sound dB: 40 - 100dB, +/- 3.5% at 94dB, Diode test, Continuity tester: Buzzer if resistance is less than 40 ohms. Duty cycle: 0.1%-99.9% ¡À 3.0%. Dimensions and Weight: 195 x 92 x 55mm, 400g. Battery: 1.5 x 3 AAA.( not include in the package) Included Accessories: Test leads, K-Type thermo probe & User Manual Package: 1 * MS8229 digital multimeter 1* Test leads 1* K type Tp01 Thermocouple