1. Laser rangefinder: Range: 0-150m
2. Thickness gauge: Metal thickness measurement, ultrasonic
3. Theodolite: Range: 0-360°, Resolution: 2″
4. Tension gauge: Range: 0-40kgf
5. Combustible gas tester: Applicable gas: combustible gas
6. Ground resistance tester: Test current: >20mA (sine wave), Resolution: 0.01Ω
7. Ground grid tester: Test current: >3A, Resolution: 0.001～99.999Ω, frequency selectable
8. Soil resistivity tester: Four-wire method measurement, Test current: >20mA (sine wave), Resolution: 0.01Ω
9. Equipotential tester: Test current: ≥1A, Four-wire method test, Resolution: 0.001Ω, equipped with large-capacity lithium battery
10. Loop resistance tester: Resistance measurement resolution: 0.001Ω, Current measurement resolution: 1μA
11. Lightning protection component tester: Test device: MOV, equipped with large-capacity lithium battery
12. Insulation resistance tester: 0-1000MΩ
13. Surface impedance tester: Measurement range: 103-1010Ω
14. Electrostatic potential tester: Measurement range: ±20kv
15. Digital multimeter: Voltage, current, resistance measurement, Resolution: 3.5 digits
16. Explosion-proof walkie-talkie; Explosion-proof communication
17. Standard resistor: 10-3~105 ohms, power 1/2w, wire-wound type
18. Steel tape measure: Resolution: 0.01m
19. Vernier caliper: Range: 0-150mm
