The 770717 Air Ionizer Test Kit is a portable measurement system designed to evaluate the offset voltage (balance) and charge decay of ionization equipment in compliance with ANSI/ESD SP3.3 standards. The kit includes an integrated 770716 Static Sensor with a measurement range of 0 to ±19.99 kV at 1 inch distance and ±5% accuracy, a conductive plate assembly (2.95" W × 1.18" L), and a charger that delivers ±1 kV output at ±20% tolerance to place test charges on the plate. The Static Sensor features a 3-1/2 digit LED display with 3 readings per second sampling rate, rotary zero knob for reference calibration, and LED distance indicator for proper measurement positioning. Operating conditions include temperature range of 50 to 86°F (10 to 30°C) and relative humidity to 80% non-condensing, with power supplied by two 9V alkaline batteries. This kit provides a convenient and portable alternative to charged plate monitors for field testing of air ionization equipment per ANSI/ESD SP3.3 Periodic Verification standards, though it is less accurate than dedicated charged plate analyzers.