3M CTC338-WW, Wrist Strap and Ground MonitorCondition:* Used, Sales Sample. In OEM Packaging. Additional Notes:* Ground Impedance Alarm Level: 1 to 20 Ohms* Wrist Strap Alarm-Body Voltage: 2.5 Volt on Operator* Wrist Strap Alarm – Operator Loop Resistance: 10 Megohms on Operator (Plus Two 1 Megohm Resistors in the end of the ground cord that attaches to the wristband)* Output Signal Level Logic 1 (+5 Volt) if below selected resistance level (all “pass”) Logic 0 (0 Volt) if above selected resistance level (any failure or power loss)* Visual Alarm Indicator (LED): Green: OK Red: Fault Condition* Audible Alarm: Buzzer Fault Condition if Enabled* Operating Environmental Range: Temperature: 50F to 110F (10C to 43C)* Humidity: 75% R.H. Maximum* Dimensions: 2.42″ x 2.45″ x 0.85″ (61 mm x 62 mm x 22 mm)* Power Adapter: 100-240 Volt AC 50-60 Hz* Output: 12 Volt DC @ 1.5 Amp3M CTC338-WWSCS 773