TEK 871 logger

• Dimensions
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G）
• Dimensions
  （Ultrasonic level sensor Exi）
• Safety
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G） Class I, Div 1, Gr C D CSA.16.70011285 Class I Zone 0 AEx ia IIB T4 Ga Complies with UL 913 II 1 G-Ex ia IIB T4 Ga SIRA15ATEX2103 X IECEx CSA 15.0006X
• Safety
  （Ultrasonic level sensor Exi） Class 1, Div 1, Group A,B,C & D T4 Class I, Zone 0 AEx ia IIC T4 Ga Complies with UL 913 SGSNA/20/CA/00003X SGS20ATEX0009X IECEx BAS 20.0005X
• Housing Material
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G） Moulded plastic, 2-part, material Glass Reinforced Polyamide, UV resistant.
• Housing Material
  （Ultrasonic level sensor Exi） Moulded plastic, 3- Part, UV Stabilized Polypropylene
• Weight
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G） Weight 350g/12oz(excluding cable & gland/external connectors)
• Weight
  （Ultrasonic level sensor Exi） 140g/5oz(excluding cable & gland/external connectors)
• Conformance
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G） ATEX/Hazloc/IECEx, PTCRB (AT&T) & Verizon approvals, RED, FCC, CE, RoHS.
• Conformance
  （Ultrasonic level sensor Exi） ATEX/Hazloc/IECEx， CE， RoHS.
• Manual Activation
  （Liquid Level logger 4G NB-IoT/CAT-M1 /2G） Magnetically activated reed switch / Audible buzzer
• Manual Activation
  （Ultrasonic level sensor Exi） N/A
• Ultrasonic Resolution ±1cm / ±0.4”
• Accuracy ±2cm / ±0.78”
• Communication LTE CAT-M1 or NB-IoT or 2G with GPS
• Signal Divergence See polar plot for the sonic profile included on this datasheet
• Battery life Up to 10 years (Note 2)
• Battery technology 3.6V Lithium Thionyl Chloride Exi “Bobbin type” construction
• Power requirements Battery pack with standard cell sizes connected with a 2 wire harness included
• Humidity 0 = 100% RH
• Operating Temperature -4°F to 131°F (-20°C to 55°C)
• Storage Temperature 32°F to 86°F (0°C to 30°C)
• Environmental Protection IP68 - Outdoors
• Installation Plug and play installation

• External connection IP68 Cable gland / IP68 bulkhead connector
• Antenna Internal with option for antenna coupler with SMA connector to allow connection of an external GSM antenna
• Data Communications Makes a TCP connection to the server over 2G, NB-IoT or CAT-M1 cellular network and delivers its payload using a proprietary Tekelek binary
• Fixing/Mounting Screw mounts (4), tie wrap, & pole mount features are standard.

• Liquid Level Ultrasonic level sensor

• Kerosene, Diesel, Gasoline

• Oils/Waste Oils

• Other hazardous/non hazardous

• DEF / Adblue

• Water

• Tanks

• Fixed or mobile

• Underground

• Spot and continuous inventory measurement