This pen size digital multimeter detector can be use to measure AC and DC voltage (Up to maximum voltage of 300V), resistance (Up to 20MΩ), diode test, continuity check, non-contact AC detection (NCD) and single probe test (SPD). 
It has a clear to read LCD, and 2x 1.5V LR44 batteries. True RMS measurement. 250V anti burn protection. 2000 counts. 
Size: 161x24x24mm.

Convenient Pen Sized Multimeter 160mm 
Cordless AC voltage detector (metered) 
Single Probe Test identify Live/Hot, ground, etc. 
AC and DC Voltage measurement 
Auto or Manual range selection 
Ohm (0-20MΩ) and Diode test 
Relative measurement and hold 
2000 count 3.5 digit LCD display 
+ Probe retracts. - probe attached 
Includes 2x LR44 batteries 
Power switch with Auto-Off

True RMS  
2000 counts (3-1/2 digit)  
Auto "V" (AC / DC) (300V)  
Auto / manual resistor measurement : 0 20MΩ (approx.)  
Continuity check : <50Ω  
Diode check : 2.0 V  
Non-Contact AC Detector (NCD) with patented numerical digital display of AC signal strength)  
Single Probe Test (SPT) AC Voltage (Audible and numerical display) > 25V : Identify "Live/Hot" and "Neutral"/Ghost wire/Voltage difference/Ground/Earthing connection  
Freeze / Hold reading  
Auto power off : 5 mins or Continuously on  
Relative reading (Rel)  
Input impedance 10MΩ  
Software calibrated  
Over range display  
Attached test leads  
Anti Burn Protection (ABP) on full range and up to 250V (AC/DC)  
Lοw battery indication (2.6V approx.)  
Battery powered : 2 x 1.5V (L1154 / LR44 / AG13)  
Dimension (LxWxD) mm : 161x24x24