The moisture meter can quickly measure the moisture content of the grain. 1. SELF-TEST FUNCTION : The electric tester can be used to evaluate neutral fire line, open and closed line detection, with self-test function . 2. 3. 4. HIGH BRIGHTNESS LED LIGHT BEADS: Electric test pen built into high brightness LED light beads, transparent pen case, intuitive testing, easier to measure. 5. SAFE AND DURABLE : The voltage pen adopts intelligent motherboard layout and professionally improved chip control scheme, with higher safety and longer service life . 6. EASY TO CARRY: The tension detector pen adopts humanized pen clip, which is more convenient to carry while working. . ELECTRICAL VOLTAGE PROBE 70-250V Specification: Item Type: Voltage Tester Material: ABS Battery: 3 button batteries 1.5 V LR44 300 mAh (supplied with built - in battery) Detection Range: 70-250V Light color : red, blue and green LED Measurement functions: zero fire detection, on and off detection, electric pen self-test, induction detection Pen tip diameter: approx. 3 mm / 0.1 inch List of packages: 1 x Voltage Tester 1 x User Manual . ELECTRICAL VOLTAGE PROBE 70-250V Note: Please allow error due to manual measurement. Zero and fire line detection: fire line: three- color alarm flashing and audible alarm. Zero line: green high light Automatic detection function , use two hands to touch the detection post and touch post tail, LED light , said normally . ELECTRICAL VOLTAGE PROBE 70-250V