Greenlee 200B-G Manuel D'instructions page 7

Specifications
Electrical
Gain (nominal): 30 dB
Input Impedance (nominal): 100 MΩ
Probe Tip Resistance (min):
Metal Tip: 0 Ω
Plastic Tip: 300 Ω
Headset: 3.5 mm stereo plug; 8 ohms minimum
Battery: One 9 VDC (NEDA 1604, JIS 006P, or IEC 6LR61)
Battery Life (nominal): 50 hours
Physical
Length: 231 mm (9.0")
Width: 55 mm (2.2")
Depth: 28 mm (1.1")
Weight: 145 g (5.2 oz)
Operating/Storage Conditions
Temperature: 0 °C to 50 °C (32 °F to 122 °F)
Maintenance
Battery Replacement
1. Turn the unit off.
2. Remove the screw and then the battery cover.
3. Replace the battery (observe polarity).
4. Replace the battery cover and the screw.
DO NOT OVERTIGHTEN SCREW.
Tip Replacement
1. Turn the unit off.
2. Remove the two slotted screws and CAREFULLY separate the
two halves of the housing. Do not strain the exposed wire
leads.
3. Replace the tip.
4. Re-assemble the housing. DO NOT OVERTIGHTEN SCREWS.
Cleaning
Periodically wipe with a damp cloth and mild detergent; do not
use abrasives or solvents.
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