HOBO H8 4-Channel External
Logger
Logger features and specifications:
- Accepts external sensors and input cables for
temperature, AC current, 0-2.5 Volt DC and 4-20mA
(described at right)
- Capacity: 32,520 measurements total
- User-selectable sampling intervals: 0.5
seconds to 9 hours, recording times up to 1 year
- Readout and relaunch with optional HOBO
Shuttle
- Programmable start time/date
- Memory modes: stop when full, wrap-around when
full
- Nonvolatile EEPROM memory retains data even if
battery fails
- Blinking LED light confirms operation
- User-replaceable battery lasts 1 year
- Battery level indication at launch
- Operating range: -4° F to +158° F (-20° C to
+70° C)
- Time accuracy: ±1 minute per week at +68° F
(+20° C)
- Size/Weight: 2.4 x 1.9 x 0.8" (60 x 48 x19
mm)/approx. 1 oz. (27 gm)
External input specifications:
- 2.5 mm jack: ground, input, switched 2.5 Volts
output
- Input range: 0 to +2.5 Volts DC
- Accuracy: ±10mV ±1% of reading
- Resolution: 10 mV (8-bit)
- Output power: +2.5 Volts DC at 2 mA, active
only during measurements
External
Sensors/Input Cables
All of the cables below can be plugged directly
into the external input jacks of the H8 Family
loggers. BoxCar Pro displays temperature and AC
current data in appropriate units.
High-accuracy temperature sensor (TMC6-HB)
- Range: +32° F to +110° F (0° C to +44° C)
- Accuracy: ±0.5° F at +70° F (±0.3° C at +20°
C)
- Resolution: 0.3° F at +70° F (0.2° C at +20°
C)
Wide-range temperature sensor (TMC6-HA)
- Range: -40° F to +212° F (-40° C to +100° C)
- Accuracy: ±0.9° F at +70° F (±0.5° C at +20°
C)
- Resolution: 0.7° F at +70° F (0.41° C at +20°
C)
Split-core
AC current sensors
- Ranges available (AC Amps): 0-20, 0-50, 0-100,
0-200, 0-600
- Ratio and linear accuracy: ±2.0% of full scale
- Response time: approximately 250 milliseconds
from 10% to 90% of amplitude
- Input current: AC current, sine wave, single
phase 50 Hz or 60 Hz, load power factor 0.5 to 1.0
4-20 mA cable
- Range: 0 to 20.1 mA
- Accuracy: ±0.1 mA ±1% of reading
- Resolution: 0.4% of full scale
- 18" cable with 3.5" tinned braided wire leads
Voltage input cable
- 6' cable with 0.5" tinned braided wire leads
805-200 HOBO H8
4-channel Logger
0.3 lb.
805-201
Wide-range temperature sensor
0.1 lb.
805-202
High-accuracy temperature sensor
0.1 lb.
805-203 0-20 A
split-core AC current sensor
0.2 lb.
805-204 0-50 A
split-core AC current sensor
0.2 lb.
805-208 4-20 mA
cable 0.2 lb.
805-209 Voltage
input cable 0.2
lb.
805-210
Replacement batteries (box of 10)
0.4 lb.
HOBO Water Temp Pro Logger
The Water Temp Pro Logger provides long-term,
underwater temperature measurement with 12-bit
resolution, ±0.2°C accuracy at 0°-50°C and ±0.36°F
accuracy at 32°-120°F. Six-yr. battery life with
non-volatile EEPROM memory that retains measurements
if batteries fail. Durable case with stands years of
rugged use in flowing streams, rivers and tides and
is waterproof up to 100'. For use up to 50°C in
water and 70°C in air. NIST-traceable certification
included. High-speed infrared base station offloads
data in less than 30 seconds (sold separately).
High-impact black protective boot is for high water
flow, flooding or conditions with debris (sold
separately). Use the BoxCar Pro® for launching the
system and retrieving data (sold separately).
805-220 HOBO Water
Temp Pro Logger 0.3
lb.
805-221 Infrared Base
Station 0.3 lb.
805-222 Black
Protective Boot 0.3
lb.
805-105 BoxCar Pro®
1 lb.
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