Check the listing for details. Precision Variable DC Resistance Box Decade Resistor Resistance Box 0~1.111110MΩ. Condition: New. Listed at 233.19 USD. Precision Variable DC Resistance Box Decade Resistor Resistance Box 0~1.111110MΩ Introduction: This rotary resistance box which has low zero resistance ,is used to adjust resistance in DC circuit. This equipment is commonly used in laboratories for schools, factories and scientific research units. The temperature of the air around should be +10℃~+35℃ and the relative humidity 30~80% when it is used . Parameters: Indication Ω Types × 100M × 10M × 1M × 100k × 10k × 1k × 100 × 10 × 1 × 0.1 × 0.01 ZX21 — — — — 0.1 0.1 0.5 1 2 5 — ZX21a — — — — 0.1 0.1 0.1 0.5 1 2 — 2X21b — — — — 0.1 0.1 0.1 0.5 1 2 — ZX21c — — — — — 0.1 0.1 0.5 1 2 5 ZX21d — — — 0.5 0.1 0.1 0.5 1 2 — — ZX21e — — 1 0.5 0.1 0.1 0.5 1 — — — ZX21f — 2 1 0.5 0.1 0.1 0.5 ZX21g 5 2 1 0.5 0.1 0.1 Current≤（A） 60 μ 180 μ 0.6 m 1.8 m 6 m 18 m 60 m 180 m 0.6 1.5 3 Adjusting range: ZX21： (0~9）×（0.1~10k）Ω ＝0~99.9999 kΩ ZX21a:（0~10）×（0.1~10k）Ω ＝0~111.1110 kΩ ZX21b：（0~9）×（0.1~10k）Ω ＝0~99.9999 kΩ ZX21c：（0~10）×（0.01~1k）Ω＝0~11.11110 kΩ ZX21d：（0~10）×（1~100k）Ω ＝0~1.111110MΩ ZX21e：（0~10）×（10~1M）Ω ＝0~11.11110MΩ ZX21f：（0~10）×（100~10M）Ω ＝0~111.1110MΩ ZX21g：（0~10）×（1k~100M）Ω ＝0~1.111110GΩ Zero resistance: （30±5）mΩ The basic errors are regulated in Table 1. The allowable current of each group resistance are shown in Table 1 The dielectric strength between resistance box circuit and shell can withstand 50 Hz frequency,2000V AC, which lasts 1 minute. The insulation resistance between resistance box circuit and shell is not less than 1000MΩ The weight of the resistance box is about 1.3 kg,and its size is 200×150×110mm3.