Voltage Indicator Proving Unit Di-Log PU690 The PU690 enables you to prove your 2 pole voltage indicator by supplying a 690V AC voltage to the two input terminals. With the inbuilt load of 200k ohms, at 690V the current is limited to 3.5mA. In addition, the PU690 is also is also suitable to prove High and Low Impedance devices such as multimeters and clamps. The PU690 will light all LED’s to 690V on the CombiVolt and most other 2 pole voltage testers 690V AC Voltage Output Designed to prove High/Low Impedance Instruments Compatible with Voltage Testers and Multimeters CAT II 750V Safety Rate . AC Voltage Measurement 690V Battery Type 6 x 1.5V (LR6) AA (supplied) Colour Yellow/Black Display Type LED Product Range Voltage Indicator Proving Unit Guarantee 1 Year